• RELEVANCY SCORE 5.67

    DB:5.67:Difference B/W Abstract &Amp; Interface dx




    Anyone tell me 4 difference b/w abstract class and interface
    plz help me

    DB:5.67:Difference B/W Abstract &Amp; Interface dx

    Asking once is enough.
    http://forum.java.sun.com/thread.jspa?threadID=734361

  • RELEVANCY SCORE 5.67

    DB:5.67:Difference B/W Abstract &Amp; Interface jm




    Anyone tell me what is Difference B/w abstract interface. because i m very confiuse.
    plz tell me

    DB:5.67:Difference B/W Abstract &Amp; Interface jm

    Anyone tell me what is Difference B/w abstract
    interface. because i m very confiuse.
    plz tell meNo doubt you're very confused, seeing how you post this kind of vague-ness.
    http://forum.java.sun.com/thread.jspa?threadID=734360

    Maybe this is the wrong field for you. Just maybe.

  • RELEVANCY SCORE 4.39

    DB:4.39:Difference B/W Ilearning &Amp; Learning Mgmt dx




    Can someone please explain the difference b/w ilearning learning mgmt.
    Thanks.

    DB:4.39:Difference B/W Ilearning &Amp; Learning Mgmt dx

    iLearning has NO built-in integration with Oracle HR out-of-the-box!

    And as TimW rightly says: OLM is the right product 99% of the times when Oracle eBS is used.

    Regards
    Anders Northeved

  • RELEVANCY SCORE 4.18

    DB:4.18:Portal Implementation 39



    Hi

    1) what is the Abstract Portal Component?

    2) what is the IPortalComponenet?

    and what is the difference b/w these two

    3) what is the difference b/w Dynpage and JSPDynpage

    Regards

    sureshbabu

    DB:4.18:Portal Implementation 39


    Hi Suresh,

    These all are various ways in which we can build Portal Applications. Things are less abstract in implementing each of these concepts that you have asked about.

    The application majorly aims to implement MVC architecture-Model View Controller.

    Each application consists of different Components. AbstractPortalComponent is a Component that renders the functionality at runtime by the Portal Runtime. Everything is written using requests and responses, that is all in code.

    DynPage is a next stage of development in MVC architecture. Here the component and its elements are rendered through HTMLB api. That is in the code itself the HTMLB controls are added to the form and that is added to the component. This has increased the application development consistently.

    The next method is using the JSPDynPage, which enables us to develop, customize the look and feel of the application in the JSP, put the logic and the functionality in a JSPDynPage that renders the component. Thus truly the MVC architecture is implemented.

    a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/8a/4dae42cb9f0f31e10000000a1550b0/frameset.htm"Here/a you can get a clear structure of a component.

    This a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/44/46b9d670e20597e10000000a155369/frameset.htm"tutorial/a might help you in developing applications in whichever method you choose.

    Regards,

    Sujana

  • RELEVANCY SCORE 4.18

    DB:4.18:Difference 9z



    difference b/w session and call transaction?

    DB:4.18:Difference 9z


    Call transaction :

    the transaction will be called immediatly when u run the report and the recording will be done once u execute the program...

    Session method:

    Session method will create a session ... U can schedule the session at any time so that it runs at the specified time..

    Let us suppose that u need to enter some 1000 materials using MM01.. when u run this during normal working hours, it consumes time and server may lose its pace..

    to avoid this , u can create a session for this data upload and schedule the session when users are less...say friday night..

    In call Transaction u can update the data in synchronous as well as asynchronous.

    in session method error log will be there, in call transaction u have to write code manualyy.

    In session method u can run multiple transactions at a time, in call transaction only one transaction at a time

    difference between batch input and call transaction in BDC

    Session method.

    1) synchronous processing.

    2) can tranfer large amount of data.

    3) processing is slower.

    4) error log is created

    5) data is not updated until session is processed.

    Call transaction.

    1) asynchronous processing

    2) can transfer small amount of data

    3) processing is faster.

    4) errors need to be handled explicitly

    5) data is updated automatically

    call transaction gets updated in one step.

    session method in two step.

    first a session gets created.

    later from sm35 you have to run it.

    in call transaction first recording is done and only a syntax CALL TRANSACTION TCODE USING BDCTAB MODE A/E/N UPDATE S/A MESSAGES INTO BDCMSGCOLL is used...here all the error messages are explicitly seen thru bdcmsgcoll.....once executed the program..process starts...

    in session method after recording three fms are called

    bdc_open_group

    bdc_insert

    bdc_close_group

    built in error log in sm35 where u can view the errors

    hence only when the session is processed in tcode sm35..process starts..in th sense all the data is kept in session and processed

    however i suggest u to go thru the general diffrences between these two...

    following are few links which can help u to get a better idea

    http://www.sap-img.com/abap/bdc-example-using-table-control-in-bdc.htm

    http://www.sap-img.com/abap/learning-bdc-programming.htm

    differences between session and call transaction methods

    Difference between BDC Session method Call Transaction

    Difference between Call Transaction Batch Input

    Br,

    Laxmi

  • RELEVANCY SCORE 3.76

    DB:3.76:W &Amp; B Motherboard Rev 1 &Amp; 2 ? 8x


    I'm about to replace 2 W B motherboards: I tought I've read that there has been two models, Rev 1 Rev 2... Was it a dream or what's the difference between the two rev ? Thanks

    DB:3.76:W &Amp; B Motherboard Rev 1 &Amp; 2 ? 8x

    Unfortunately I found the machine incapable of network backup in Retrospect v6.1.230, running 10.4.11, despite all my efforts. Retro forum's users don't use G3s anymore, so no help there. Any suggestions for a hanging app?

    I tried comparing the Ethernet port connection with FW port connections direct to the machine but no-go. Scans but doesn't execute the backup, SWOD (spinning wheel of death) occurs and freezes the progress of the backup.

  • RELEVANCY SCORE 3.40

    DB:3.40:Difference Between Abstract Class And Interface ? fz


    CAN ANY BODY TELL ME THE DIFFERENCE BETWEEN THE ABSTRACT CLASS AND INTERFACE ?

    DB:3.40:Difference Between Abstract Class And Interface ? fz

    - An abstract class is a class that can not be instantiated but that can contain code, i.e. it gives you the ability to specify default implementations of methods.

    - An interface only contains methods but does not contain any code and you need to implement all the methods defined in the interface.
    - Interfaces may be multiple-inherited, abstract classes may not
    http://www.codeproject.com/Articles/11155/Abstract-Class-versus-Interface
    http://stackoverflow.com/questions/56867/interface-vs-base-class

  • RELEVANCY SCORE 3.40

    DB:3.40:Regarding The Abstract And Interface km


    hai,
    I am new to java programming

    I want to difference between abstract interface,interface and abstract class

    public abstract interface Test{}

    public interface Test{}

    public abstract class Test{}

    which kind of situations use the above interfaces and abstract classes

    It would be helpfull if explain with example....

    Thanks

    DB:3.40:Regarding The Abstract And Interface km

    shashikumar, please don't multipost and don't use the browser's back button to edit your post. This creates multiple posts. I've removed the other thread you started a minute after this one.

    db

  • RELEVANCY SCORE 3.36

    DB:3.36:Difference B/W Prompts,User Pov,Grid Pov &Amp; Pages 8z


    Hi

    What is the difference between Prompts,User POV,Grid POV Pages....When do we use them.

    Thnks

    DB:3.36:Difference B/W Prompts,User Pov,Grid Pov &Amp; Pages 8z

    Hi Ann

    Kelly is right the details are all in the documentation that should be easily available... My thoughts and experience of the different options are as follows and may help you:

    Pages: Provide multiple choices for one or more dimensions in a drop down list within the report. Be a bit careful with these, I've avoided them as in earlier versions reports with a lot of members in on the page drop down list took a long time to load. This may have improved with the more recent releases but I've not really used them for a while

    Prompts: Allow users to select member(s) for the report at run-time. Personally I'm not keen on these as it takes more user selections (clicks of the mouse) to actually get to your report each time, I prefer to use the POVs

    Grid POV: Similar to user POV but I've tended to use them where I want to use a fixed member from a dimension e.g. 'Actual' or 'YearTotal' but not show it in the report grid rows or columns (useful if you have several dimensions this can apply to)

    User POV: I find this the most useful for things that change regularly like Year, Location, Scenario, Version, particularly in combination with the Grid POV as mentioned above. The User POV is stored for each user and the last POV used is applied to the next report when opened

    Good luck with your report building, I'm sure you'll develop your own preferences as you get used to the options.
    Stuart Game
    www.analitica.co.uk

  • RELEVANCY SCORE 3.31

    DB:3.31:Please Suggest 7p


    public abstract MyClass
    {
    public abstract void method1();
    public abstract void method2();
    }

    public interface MyInterface
    {
    public abstract void method1();
    public abstract void method2();
    }

    What is the difference between these two ?

    DB:3.31:Please Suggest 7p

    What exactly is your question? Are you trying to understand the difference between an abstract class and interface?

  • RELEVANCY SCORE 3.26

    DB:3.26:Please Differentiate These Codes 17


    I have two classes A(abstract) B ( derived from A)
    Please tell me difference B/w two codes written below using classes A and B

    abstract class A
    {
    public virtual void test()
    {
    Console.WriteLine(A);
    }
    }
    class B:A
    {
    public void test()
    {
    Console.WriteLine(Rect);
    }
    }

    DB:3.26:Please Differentiate These Codes 17

    Hi urprob,

    How is it going now with our friends' suggestions?
    We are looking forward to hearing from you.

    Have a nice day,Leo Liu [MSFT]
    MSDN Community Support | Feedback to us

  • RELEVANCY SCORE 3.26

    DB:3.26:Difference Between Interface And Abstract Class a1


    Hi sirs,

    Give me the differences between interface and abstract class
    and when we go for interfaces and abstract class in developing an application

    DB:3.26:Difference Between Interface And Abstract Class a1

    An interface is a 100% abstract class, which means it doesn't contain any code, just method names and signatures. You use abstract classes when you want some code to be shared among the inheritors.

    The advantage with interface is that a class can implement as many interfaces as you like, while it can only extend one (abstract) class.

    So, you use interfaces when you need to extend other classes or doesn't want any code shared, and abstract classes when you don't want to extend other classes, and would like to share some code.

  • RELEVANCY SCORE 3.26

    DB:3.26:Difference ???? xz


    What's the difference between an Interface and Abstract class ??????

    DB:3.26:Difference ???? xz

    Is google broken again?
    [http://www.google.co.uk/search?q=What's+the+difference+between+an+Interface+and+Abstract+class] 652,000 hits

  • RELEVANCY SCORE 3.26

    DB:3.26:What Is The Main Difference B/W Forms 6i &Amp; Forms9i 89


    Hi,
    Can anyone help me on the followng questions:

    1. What is the difference b/w Forms6i Forms 9i?
    2. What is the difference b/w Forms9i Forms 10g?
    3.What is the difference b/w Reports6i Reports 9i?
    3.What is the difference b/w Reports9i Reports 10g?
    Just basic difference i want to know.

    Please send me to my mail : gmrao.oracle@gmail.com

    Regards,
    Arjun.

    DB:3.26:What Is The Main Difference B/W Forms 6i &Amp; Forms9i 89

    Take a look at:
    Re: DIff between 9i and 10g

    Greetings,
    Sim

  • RELEVANCY SCORE 3.26

    DB:3.26:Difference pj



    hi ..

    difference b/w collect and sum.

    DB:3.26:Difference pj


    hi

    good

    SUM.

    Effect

    When processing an internal table in a block starting with LOOP and concluded by ENDLOOP , SUM calculates the control totals of all fields of type I , F and P (see also ABAP/4 number types ) and places them in the LOOP output area (header line of the internal table or an explicitly specified work area).

    You can use the SUM statement both at the end and the beginning of a control group (see also AT FIRST/LAST ).

    Example

    Display the table T with sub-totals:

    DATA: BEGIN OF T OCCURS 100,

    CODE(4),

    SALES TYPE P,

    DISCOUNT TYPE P,

    END OF T.

    ...

    LOOP AT T.

    AT FIRST.

    SUM.

    WRITE: /4 'Grand Total:',

    20 T-SALES, 40 T-DISCOUNT.

    ULINE. SKIP.

    ENDAT.

    WRITE: / T-CODE,

    20 T-SALES, 40 T-DISCOUNT.

    AT END OF CODE.

    SUM.

    WRITE: / T-CODE, 10 'Total:',

    20 T-SALES, 40 T-DISCOUNT.

    SKIP.

    ENDAT.

    ENDLOOP.

    Notes

    When you use SUM in a LOOP with an explicitly specified output area, this output area must be compatible with the line type of the internal table.

    When using LOOP to process a sorted extract (see SORT ), the control total of f at the end of the group appears in the field SUM(f) - - if f is type I , F or P .

    Note

    Runtime errors

    SUM_OVERFLOW : Value too large when calculatng totals in internal table, field too small.

    SUM_NO_INTERNAL_TABLE : The SUM statement was used outside a LOOP on an internal table.

    SUM_ON_FOREIGN_INTERNAL_TABLE : The SUM statement was used in a LOOP belonging to another ABAP/4 program.

    COLLECT

    Basic form

    COLLECT [wa INTO] itab.

    Addition

    ... SORTED BY f

    Effect

    COLLECT is used to create unique or compressed datsets. The key fields are the default key fields of the internal table itab .

    If you use only COLLECT to fill an internal table, COLLECT makes sure that the internal table does not contain two entries with the same default key fields.

    If, besides its default key fields, the internal table contains number fields (see also ABAP/4 number types ), the contents of these number fields are added together if the internal table already contains an entry with the same key fields.

    If the default key of an internal table processed with COLLECT is blank, all the values are added up in the first table line.

    If you specify wa INTO , the entry to be processed is taken from the explicitly specified work area wa . If not, it comes from the header line of the internal table itab .

    After COLLECT , the system field SY-TABIX contains the index of the - existing or new - table entry with default key fields which match those of the entry to be processed.

    Notes

    COLLECT can create unique or compressed datasets and should be used precisely for this purpose. If uniqueness or compression are unimportant, or two values with identical default key field values could not possibly occur in your particular task, you should use APPEND instead. However, for a unique or compressed dataset which is also efficient, COLLECT is the statement to use.

    If you process a table with COLLECT , you should also use COLLECT to fill it. Only by doing this can you guarantee that

    the internal table will actually be unique or compressed, as described above and

    COLLECT will run very efficiently.

    If you use COLLECT with an explicitly specified work area, it must be compatible with the line type of the internal table.

    Example

    Compressed sales figures for each company

    DATA: BEGIN OF COMPANIES OCCURS 10,

    NAME(20),

    SALES TYPE I,

    END OF COMPANIES.

    COMPANIES-NAME = 'Duck'. COMPANIES-SALES = 10.

    COLLECT COMPANIES.

    COMPANIES-NAME = 'Tiger'. COMPANIES-SALES = 20.

    COLLECT COMPANIES.

    COMPANIES-NAME = 'Duck'. COMPANIES-SALES = 30.

    COLLECT COMPANIES.

    The table COMPANIES now has the following appearance:

    NAME SALES

    Duck 40

    Tiger 20

    Addition

    ... SORTED BY f

    Effect

    COLLECT ... SORTED BY f is obsolete and should no longer be used. Use APPEND ... SORTED BY f which has the same meaning.

    Note

    Performance

    The cost of a COLLECT in terms of performance increases with the width of the default key needed in the search for table entries and the number of numeric fields with values which have to be added up, if an entry is found in the internal table to match the default key fields.

    If no such entry is found, the cost is reduced to that required to append a new entry to the end of the table.

    A COLLECT statement used on a table which is 100 bytes wide and has a key which is 60 bytes wide and seven numeric fields is about approx. 50 msn (standardized microseconds).

    Note

    Runtime errors

    COLLECT_OVERFLOW : Overflow in integer field when calculating totals.

    COLLECT_OVERFLOW_TYPE_P : Overflow in type P field when calculating totals.

    Related APPEND , WRITE ... TO , MODIFY , INSERT

    thanks

    mrutyun^

  • RELEVANCY SCORE 3.26

    DB:3.26:Java Programming 33


    what is the difference between 'abstract' class and 'interface'

    DB:3.26:Java Programming 33

    Hey, get back in line. Don't jump the queue :)Well I guess I haven't qualified myself for this
    year's hunt. Maybe I could get a free-card because I
    was always on the Most Arrogant List a few years ago.Ok. I'll be nice. You'll get a free pass.

    Kaj

  • RELEVANCY SCORE 3.25

    DB:3.25:Difference j9


    difference between abstract class and interface

    DB:3.25:Difference j9

    @OP You can see by the blatant obviousness and boring repetitiveness of these answers that this is a frequently asked question.

  • RELEVANCY SCORE 3.15

    DB:3.15:Abstract Class Or Interface ? 11


    can any one tell me the difference between an abstract class an an interface. which is more useful ?

    DB:3.15:Abstract Class Or Interface ? 11

    You could also try searching this site for your question. It has been discussed in other threads as well (I posted a simialar (how do you spell that?) question).

  • RELEVANCY SCORE 3.15

    DB:3.15:Use Of An Abstract Keyword 37


    Hi all , I want to know about

    1.the usage of an abstract keyword.

    2.Difference between abstract and interface

    3.When to use abstract keyword.

    DB:3.15:Use Of An Abstract Keyword 37

    Hi all , I want to know about Give it a try yourself first, post it here and you get feedback.

  • RELEVANCY SCORE 3.14

    DB:3.14:Diff B/W Value Objects(Vo's) &Amp; Action Forms sp


    Hi,

    Can any one tell me the difference between value objects(VO's)
    and ActionForm's..............

    Thnk u..............

    DB:3.14:Diff B/W Value Objects(Vo's) &Amp; Action Forms sp

    Use Google and you'll see that one has nothing at all to do with the other.

  • RELEVANCY SCORE 3.12

    DB:3.12:Doubt About Interface &Amp; Abstract xa


    Hai everybody,
    I am new java technology. I need clear discribtion about interface abstract.
    Please give some examples and differentiate it.

    i awaiting for your reply

    by
    azhar

    DB:3.12:Doubt About Interface &Amp; Abstract xa

    Even Wikipedia has info about this:

    http://en.wikipedia.org/wiki/Interface_%28Java%29
    http://en.wikipedia.org/wiki/Class_%28computer_science
    %29#Abstract_and_concrete_classeswhenever someone asks this question, they don't really want to read about it, they just want someone to tell them the secret rules about when to use an interface and when to use an abstract class. but we're not telling :-)

  • RELEVANCY SCORE 3.10

    DB:3.10:Difference Between Interface And Abstract Class? x1


    Hi,

    Can u plz explain
    at what scenarios we use interface and abstract class.?

    Thanks,
    B.Maruthi

    DB:3.10:Difference Between Interface And Abstract Class? x1

    If you had read the FAQ at the top of the forum home
    page you wouldn'y have bothered to ask this
    question.Anyways heres the link

    Read the question number 13 in this link

    http://access1.sun.com/FAQSets/newtojavatechfaq.htmlnice

  • RELEVANCY SCORE 3.09

    DB:3.09:What Is The Diff B/W Abstract Class And An Interface ? xd


    Hey

    I am always confused as with this issue : diff b/w Abstract class and an interface ?

    Which is more powerful in what situation.

    Regards
    Vinay

    DB:3.09:What Is The Diff B/W Abstract Class And An Interface ? xd

    Hey

    I am always confused as with this issue: diff b/w Google and forum search ?

    Which is more powerful in what situation.

    Regards
    itchyscratchy

    http://onesearch.sun.com/search/onesearch/index.jsp?charset=UTF-8qt=abstract+interface+differencerf=0rt=1site=devnh=10cs=0col=developer-forumsdftab=siteid%3AjavachooseCat=javaallsubCat=siteid%3Ajava
    http://www.google.co.uk/search?hl=enq=abstract+interface+differencebtnG=Google+Searchmeta=

  • RELEVANCY SCORE 3.08

    DB:3.08:Difference Between Inteerface And Abstract 11


    Hi,Please Anyone can tell me What is the difference between Abstract and Interface?Where we can use interface and where we can use abstract?What is the uses of both?

    DB:3.08:Difference Between Inteerface And Abstract 11

    I agree with the all of the above, just adding one more thing:
    An interface is a pure abstract

  • RELEVANCY SCORE 3.08

    DB:3.08:Difference B/W &Amp;&Amp; And &Amp; fk


    what is the difference b/w and

    DB:3.08:Difference B/W &Amp;&Amp; And &Amp; fk

    See
    http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.22
    and
    http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.23

  • RELEVANCY SCORE 3.08

    DB:3.08:Abstract Class And Interfaces xz


    Hi Recently

    I attended a Interview ,Interviewer asked me what is difference b/w abstract and interface.

    I cud give answer ,,he said what if abstract class has all abstract methods.in this situation is ther any difference between abstract class and interface..

    i said there will be no difference in making all methods abstract and it is similar to interface.the only difference is at one point of time u can have a class can inherit only one abstarct class whereas interface u can have more than one interface....

    I want to know is my answer is right r not..please suggest is it correct and if any other ans please do reply

    With Regards
    Mahender
    Mahender

    DB:3.08:Abstract Class And Interfaces xz

    Stepping away from purely technical differences, there are some more fundamental ones.First there is a semantic difference. A base class says that any derived classes have an is a relationship with the base. For example you could have a base class such as Stream because derived classes are streams, but you wouldn't have a base class such as Serializable because you couldn't say that a derived type is a Serializable.Secondly there is the versioning problem. With an abstract base class you can add non-abstract members in future versions without breaking any existing functionality (save for possibly name collisions) because the base class provides the implementation. With an interface you can never add members because you will break any existing implementors. http://gregbeech.com/blogs/tech

  • RELEVANCY SCORE 3.07

    DB:3.07:Difference Between Interface And Abstract Class mj


    hello friends give me the difference between interface and abstract class
    and link to find java material

    Thanx

  • RELEVANCY SCORE 3.05

    DB:3.05:Difference B/W Local And Sequential Files px



    hi

    difference b/w local and sequential files

    DB:3.05:Difference B/W Local And Sequential Files px


    local file is the file in the presentation server( example ur desktop or c drive or something like that).

    application server is the file in ur sap directory. u can view with the transaction al11.

  • RELEVANCY SCORE 3.04

    DB:3.04:Difference B/W Jsp:Forward &Amp; Response.Sendredirect?? 3m


    Can anybody please list differences b/w jsp:forward and response redirectURL
    to go different page.
    One i know, browser shows different URL incase of sendredirect() function.

    DB:3.04:Difference B/W Jsp:Forward &Amp; Response.Sendredirect?? 3m


    sendRedirect sends information back to the browser in the httpHeader telling it
    to send out a new http requests. This request can be to the same server or a different
    server - it is just as though you typed the new URL in the browser and hit return.

    jsp:forward simply calls the service() method of the jsp that you are calling
    - without the browser knowing about it. As such, the url you are forwarding to
    must be in the same server.

    Mike

    "Ashish Jain" no_spam_ajainy164@yahoo.com wrote:
    Can anybody please list differences b/w jsp:forward and response redirectURL
    to go different page.
    One i know, browser shows different URL incase of sendredirect() function.

  • RELEVANCY SCORE 3.04

    DB:3.04:Difference B/W Propagation &Amp; Running Modes Of Weblogic Server 1x


    what is the difference b/w Propagation Running modes of Weblogic server?

    anyone can tell me,plz.

    DB:3.04:Difference B/W Propagation &Amp; Running Modes Of Weblogic Server 1x

    what is the difference b/w Propagation Running
    modes of Weblogic server?

    anyone can tell me,plz.Wouldn't it be better if you ask that in a weblogic forum?

    Kaj

  • RELEVANCY SCORE 3.04

    DB:3.04:Difference B/W Wa &Amp; Excel Addin z1


    Hello all,
    Difference between web analysis and Excel add in. What are the exact features that are not there in excel and WA is providing.

    Thanks

    DB:3.04:Difference B/W Wa &Amp; Excel Addin z1

    A few differences:
    1) The add-in is just that -- an add-in to Excel. WA is an HTML client with a Java studio.
    2) The audiences are often different -- financial analysts vs. higher level viewers (although WA can do ad-hoc, sort of)
    3) WA is oriented around canned reports that users view or maybe modify. The add-in can produce beautiful reports, but requires an effort of biblical proportions to make it into a "system".

    The two couldn't be more different other than they both use Essbase.

    Regards,

    Cameron Lackpour

  • RELEVANCY SCORE 3.04

    DB:3.04:Abstract Class 13


    Difference between abstract class and interface
    use of abstract class

    DB:3.04:Abstract Class 13

    This question has been asked here about a billion times:

    http://search.java.sun.com/search/java/index.jsp?qt=interfacenh=10qp=st=11rf=0since=country=language=charset=variant=col=javaforums

  • RELEVANCY SCORE 3.03

    DB:3.03:Why We Use Interface? c9


    I appeared one of my interviews.The Interviewee asked me a question that

    Suppose one is abstract class and one is interface.
    All the methods of abstract class are abstract.
    Then on this level what is the difference between abstract
    and interface and why we use interface. I could not answer properly.
    Please guide me the actual difference between Abstract class and Interface.
    Thanks

    DB:3.03:Why We Use Interface? c9

    google is your friend! Dear You are also my friend ;)

  • RELEVANCY SCORE 3.03

    DB:3.03:Difference Between Apps Dba &Amp; Apps Technical zk


    WHAT is the difference b/w APPS dba technical .

    how the job is differentiated in the industry

    DB:3.03:Difference Between Apps Dba &Amp; Apps Technical zk

    CMIIW, In general Apps DBA is the one that installs, applying patch , and maintaining applications, and technical in one way is more towards apps developer, the one who create customizations in oracle apps forms, reports, workflow, pages, interfaces etc.
    But in some company they uses the terminology "Apps technical consultant" as the person who know both dba and developers.

  • RELEVANCY SCORE 3.02

    DB:3.02:Interface Vs Abstract Class 97


    Hi All,
    Here I have a doubt.
    What is the difference between an bInterface/b and bAbstract class/b(Design Point of View)??.
    In which scenario which is useful.
    Can anybody kindly reply me.

    Thanks and Regards,
    Krishna Mattam
    Team Member - CDF Toolset
    Contact:044-22548575
    Email: mkrish17@ford.com

    DB:3.02:Interface Vs Abstract Class 97

    can you pls send the link to that chapter 4.6I haven't seen it online. You probably will have to buy a paper copy. It's published by Sun. It's the authorative reference on Java so it's worth having.

  • RELEVANCY SCORE 3.01

    DB:3.01:Difference Between Abstarct Class And Interface 7j


    HI,
    Here is a simple one for the gurus but quite important for me.

    What is the difference b/w an Interface and an abstract class?
    Why do we need each one of them?
    I would appreciate if you people can give examples of each so that I amy understand fully

    Thanks in advance...

    DB:3.01:Difference Between Abstarct Class And Interface 7j

    Sorry about the formatting, this was my first attempt at using [ code ] brackets...

  • RELEVANCY SCORE 3.01

    DB:3.01:Difference B/W Requestdispatcher &Amp; Res.Sendredirect js


    As above, can anyone tell me the difference?

    DB:3.01:Difference B/W Requestdispatcher &Amp; Res.Sendredirect js


    Let say, if u want to call a servlet from another servlet where you are willing to use some of the parameters of first servlet...

    then you should use request distpatcher.... always the object would may associate with request context or the config context there by, I assume you cannot change the default host .. and you can only redirect to servlet or any file which should be available on the same host.

    where as
    Send Redirect is mostly used whenever you want to redirect to different host or website

    with regards
    Lokesh T.C

  • RELEVANCY SCORE 3.00

    DB:3.00:Synchronized &Amp; Inheritance zj


    Hi all,
    I try to explain it as short as possible:

    public abstract class A {
    ...
    public synchronized void aaa() {...}
    public synchronized void bbb() {...}
    ...
    }

    public class B extends A {
    ...
    public synchronized void ccc() {...}
    public synchronized void ddd() {...}
    ...
    }

    Now I create instance of B:
    b = new B();

    Access to synchronized methods b.aaa(), b.bbb(), b.ccc(), b.ddd() is protected with the same lock of object b. In other words (maybe not-so-java-pro words) these methods are all synchronized together.
    Is it correct?
    Would it make a difference if A was not abstract class but instead just class (other the same)?
    Thanks.

    DB:3.00:Synchronized &Amp; Inheritance zj

    Just to reinforce what Brian said. A synchronized method acquires the lock of 'this', and 'this' doesn't change whether you are invoking a method of the actual class or an inherited one.

    Note however that static synchronized methods in A and B would lock different objects: the Class object for A and the Class object for B, respectively.

  • RELEVANCY SCORE 2.98

    DB:2.98:Difference Between Abstract Class And Interface ca


    Hi everyone,

    CAn anyone explain why the following happen????

    --------------------------------------------------------------------------------
    Abstract class can have a constructor, Interface cannot.
    Abstract class can have static methods, Interface cannot.
    --------------------------------------------------------------------------------

  • RELEVANCY SCORE 2.98

    DB:2.98:What Is The Difference B/W Run_Product &Amp; Run_Report_Object? kz


    what is the difference b/w run_product run_report_object?

    DB:2.98:What Is The Difference B/W Run_Product &Amp; Run_Report_Object? kz

    Refer to the Forms online help for details. URL below:

    http://www.oracle.com/webapps/online-help/forms/10g/topics/f1_help/builtn_r/runprodu.html

  • RELEVANCY SCORE 2.96

    DB:2.96:Difference % Abstract Class And Interface? d3


    Hi,

    I am confused about abstract class and interface. For interface, the subclass has to implement all the parent class methods. But, it is no need in abstract class.

    However, in which situation should I use abstract class or interface?

    Thanks for explanation.

  • RELEVANCY SCORE 2.96

    DB:2.96:Difference B/W Oracle Application Server &Amp; E-Business Suites Apps xz


    what's the difference b/w these?
    Looking for some starter tutorials to do Oracle APPs ......

    Do oracle has Oracle By Example (OBE) for E-Business suites apps like
    http://www.oracle.com/technology/obe/start/index.html

    DB:2.96:Difference B/W Oracle Application Server &Amp; E-Business Suites Apps xz

    Also,

    Apart from The Oracle Application Server being a stack of Oracle Technologies (as mentioned by Hsawwan above), it is a component that enables the applications that form the E-Business Suites. i.e It 'serves' those applications in the EBS for end-user access.

    My 2 Cents.

    Rgds

  • RELEVANCY SCORE 2.96

    DB:2.96:Diff B/W Domain &Amp; Namespace xf


    Hi,What is the difference b/w domain namespace........from the description both look similar to me ......

    DB:2.96:Diff B/W Domain &Amp; Namespace xf

    Hi,What is the difference b/w domain namespace........from the description both look similar to me ......

  • RELEVANCY SCORE 2.96

    DB:2.96:Interface cf



    Hi..

    What is the difference b/w classes and interface

    DB:2.96:Interface cf


    The essential difference between interfaces and classes is that there is no implementation part for an interface. Therefore, it is not necessary to add DEFINITION to INTERFACE. The methods of an interface are all abstract. They are fully declared, including their parameter interface, but not implemented in the interface. Like the subclasses that implement the abstract methods of their abstract superclasses, all classes that want to use an interface must implement its methods.

  • RELEVANCY SCORE 2.96

    DB:2.96:Difference B/W Sqlldr &Amp; External Tables 7m


    Hi

    What is the major difference between sql loader and external tables? Which is the best way for loading data into tables?

    Please explain me..!!

    regards
    Ak

    DB:2.96:Difference B/W Sqlldr &Amp; External Tables 7m

    Hi G,

    For me personally, external tables seem comfortable. and with sqlldr you can only load data. but with external tables you can unload data as well(write to files).I know how to load the data from flat file to table through external table. But I don't know how to do the unload the data.
    Can you please give me a small example on emp table. It is very useful to me.

    Sorry If I troubling you..!!

    regards
    Arpitha

  • RELEVANCY SCORE 2.96

    DB:2.96:Who Can Tell The Difference Of The Abstract Interface Class? 79


    someone ask me that he had a abstarct interface class, such as :
    public abstract interface Book{
    }
    I was comfused, who can tell me why use it?

    DB:2.96:Who Can Tell The Difference Of The Abstract Interface Class? 79

    http://java.sun.com/docs/books/tutorial/java/interpack/interfaceDef.html

    Scroll down to the bottom.

    Drake

  • RELEVANCY SCORE 2.96

    DB:2.96:Diff Between Interface And Abstract Class 9a



    Hi to all,

    I am woking on OOP in ABAP .Could any one can tell the difference between interface and abstract class.

    thanks in advance .

    DB:2.96:Diff Between Interface And Abstract Class 9a


    Hello Sagar,

    like Uwe told one basic difference is that you may provide some methods with an abstract class but not with an interface. The unique feature of interfaces is that you may implement several ones while abstract classes are limited to one inheritance hierarchy.

    Regards

    Klaus

  • RELEVANCY SCORE 2.96

    DB:2.96:What Is The Main Difference B/W Interface And Abstract Class 83


    is there any specific difference b/w interface and abstract class. if wht is tht? and how?

    DB:2.96:What Is The Main Difference B/W Interface And Abstract Class 83

    abstract class can be have methods with body

    interface cannot

    interface is 100% abstract class

  • RELEVANCY SCORE 2.96

    DB:2.96:Difference: s1


    Consider the scenario:

    There exists a abstract implementation (say 'AbstractImpl' ) of a interface (say 'InterfaceA'). Concrete implementaion (say 'ConcreteImpl') extends 'AbstractImpl'. (This is sometimes called Template Design Pattern).

    What is the difference between:
    1.
    AbstractImpl a=new ConcreteImpl();2.
    InterfaceA b = new ConcreteImpl();Does it makes a difference on either way of instantiation? What is a better approach? and Why?

    DB:2.96:Difference: s1

    In any event this has nothing to do with the OPs
    question. the question was about the common practice
    of creating an interface and then creating an default
    abstract version of that class (see AbstractList).Based upon the example I believe the OP's confusion, if not their explicit question, is over how type should be declared. For example, whether or not you declare a ListString or an ArrayListString.

    Also, as a bit of further explanation to the OP it's not so much the declaration that is important as it is your method signatures. If your method specifies it returns an InterfaceA then you can have it return any InterfaceA, if the method returns an AbstractImpl you can never change it to a different InterfaceA that's not necessarily an AbstractImpl. The declaration can still be important, but that's only going to affect the class it's delared in (assuming external classes don't access it directly). The method signature will get you into trouble as every client will be affected.

  • RELEVANCY SCORE 2.95

    DB:2.95:Interface And Abstract Class c8


    Hi,

    Could you please let me know what is the exact difference between interface and abstract class.Which one is better to use .Could you please give me indepth answer.

    DB:2.95:Interface And Abstract Class c8

    Stop. Stop. Stop. I beg you...You're behaving like a Chinese gentleman with sand in his boots. Stop.

    Do we save the execution time by using interface.This is a compiler/byte code related question. Please post it in the proper place.

    What might be the behaviour inside the memory
    location by using interface and abstract class.Same answer.

    /Morten

  • RELEVANCY SCORE 2.95

    DB:2.95:Ordered &Amp; Unordered Arraylist With Interface &Amp; Abstract Class xf


    you can remove this

    Edited by: Taco_John on Mar 9, 2008 7:38 PM

  • RELEVANCY SCORE 2.95

    DB:2.95:What Is The Difference B/W Abstract Class And Interface j9


    Hi everybody!
    I'm little confused abt the difference b/w abstract class and interface. Plz help me in this regard.
    Bye
    Mustafa

    DB:2.95:What Is The Difference B/W Abstract Class And Interface j9

    You've got a lot of postings describing the semantic differences, here's one that gives you a practical difference: use interfaces to define policy, abstract classes to define mechanism.

    Assuming that got a big "huh?" ...

    An interface defines a set of methods, which I think of as "capabilities." For example, java.util.List defines methods to add/remove/retrieve items to a list. Any object that implements that interface is saying that it has the capability to maintain items in a list. However, it doesn't say anything about how that object is implemented; perhaps it uses an array, perhaps a linked list.

    By comparison, java.util.AbstractList defines at least part of the mechanism used to implement the List interface. It still leaves some of the implementation open to the programmer, but handles a lot of the details common to all lists.

    By keeping this practical definition in mind, I'm not tempted to use an abstract class in place of an interface. Instead, I limit abstract classes to places where there's common implementation -- in other words, they become a refactoring tool.

    One example: as I've started to develop Swing apps, I find that I'm implementing a lot of dialogs. Since I want a common look and feel to my dialogs, there's a lot of code that's common. However, since each dialog has a separate purpose in life, there's also a lot that differs. So I implemented an AbstractDialog class that handles common operations such as UI decorations.

    Now, I could have implemented this as an instantiable class, which would have methods that are overridden by subclasses. But I went with an abstract class for two reasons: (1) there's no reason to instantiate the base dialog, and more important, (2) by defining certain methods as abstract, I force the subclass into providing implementations, thus eliminating bugs due to laziness.

    One last comment: this example defines very little in the way of policy, so it's clearly a candidate to be an abstract class. You may wonder what to do about objects that aren't so clear, but I've found that there are very few of these. In my version of a good OO design, objects either define policy or mechanism, but almost never both.

  • RELEVANCY SCORE 2.95

    DB:2.95:What Is The Actual Difference Between Interfaces &Amp; Abstract Classes..? 73


    Hi Friends..!

    Please let me know what is the actual difference between Interfaces and Abstract Classes. All we can do in Abstract classes(ofcourse, except method definitions), is still possible to do in Interfaces. Then, why the concept of Abstract classes..?

    In which situation, we need Interfaces rather than Abstract classes and Vice-Versa..?

    Regards,
    k.suresh

  • RELEVANCY SCORE 2.95

    DB:2.95:Interfaces V/S Abstract Classes???? m3


    Hi Every1
    Can anybody plz tell me the difference b/w "INTERFACE ABSTRACT CLASSES" from design prospective. I have sufficient knowledge on Interfaces and abstract classes in general, but unable to make out when should I use which one? I have read few topics on Java World and from some other sites too, but unable to makeout the difference.
    Topic on "Abstract Classes v/s Interfaces" on Java World says that if your design changes frequently then go for "Interfaces". Why?????
    That tutorial also says "Interfaces are generally used for making Framework. "HOW"????
    I have different thinking...
    Lets say there is one interface called I_Animal and an abstract class called C_Animal, which are as follows:

    interface I_Animal{
    public void move(); // Which tells how different animals move
    }

    Now my Abstract class

    class abstract C_Animal{
    public void move(); // Which tells how different animals move
    }

    Now there 2 classes namely(C1 and C2), C1 implements I_Animal to provide the functionality of move() method.
    C2 extends C_Animal(abstract class) to provide the functionality of move() method.

    class C1 implements I_Animal{
    public void move(){
    // Some functionality
    }
    }

    class C2 extends C_Animal{
    public void move(){
    // Some functionality
    }

    Now what i want to know is which approach is better and "WHY"??
    My thinking is....
    Sometimes using interfaces is advantegeous while sometimes abstract calsses are better, depending upon the requirement and situation

    Lets say in the above example, in future we want to add one more method called eat(). If we r adding eat() method in interface then we have to add the method in the class (which implements that interface) also. So in this case we have to make changes at two different places(namely interface and the implementing class), but if we are adding the move() method in abstract class, we can add it in the abstract class with blank implementation(i.e opening and closing the curly braces like this {}). Here we are not changing the code at two different places. so in this case abstract classes are advantegeous.
    Lets think of a different senario where my class is already extending some other class, then in that case I can't use abstract class because Java doesn't support Multiple Inheritance. So the only way round is to use Interfaces.
    So this is how I differentiate b/w interfaces and abstract classes. Do anyone of you have different thought on this. Plz tell me.

    Any help will be appreciated

    Tx in Advance
    Jam

    DB:2.95:Interfaces V/S Abstract Classes???? m3

    Why are interfaces useful from a design perspective? Because they are less intrusive.

    For instance, take a look at the interface Action and the abstract class AbstractAction in Swing. Say you want to add a button to a toolbar (using JToolBar). The add method accept any object that has type Action. This means that you can add any instances of your own classes with the only requirement that they implement the Action interface. However, if add was designed to take an instance of type AbstractAction, then you would be forced to make your own class inherit from AbstractAction. That is a very intrusive requirement because classes can only inherit from one other class. Requiring that a class implement an interface, on the other hand, is not intrusive because classes can implement more than one interface.

  • RELEVANCY SCORE 2.95

    DB:2.95:Why Interface?Differnce Between Interface And Abstract Class d3


    why we go for interface? what is the difference between interface and abstract class?

    can anyone plz explain with clear picture.

    DB:2.95:Why Interface?Differnce Between Interface And Abstract Class d3

    Look at his profile. He's nothing but a homework dumper anyway. Someone to be ignored.

  • RELEVANCY SCORE 2.94

    DB:2.94:Difference B/W 9i &Amp; 10g Rac cp


    Any body has good artice on difference b/w 9i 10g RAC, management and setup...

    DB:2.94:Difference B/W 9i &Amp; 10g Rac cp

    Have you checked out Oracle's documentation?

    What, in your opinion, is missing from the "What's New in 10gR1" and "What's New in 10gR2" sections of the Oracle Database Oracle Clusterware and Oracle Real Application Clusters Administration and Deployment Guide - 10g Release 2 (10.2) manual?

  • RELEVANCY SCORE 2.94

    DB:2.94:Diff B/W Discrete &Amp; Repetitive Mgt kx


    Hi,

    I am new to JD Edwards. What is the Difference b/w Discrete Repetitive management.

    Give me an example for that.

  • RELEVANCY SCORE 2.94

    DB:2.94:Difference Between Xref &Amp; Dvm cm


    Hi All,
    Can you tell me please difference B/W XREF DVM and How to populate them at runtime? Lookup-DVM syntax.

    Thanks
    Nirmal

    DB:2.94:Difference Between Xref &Amp; Dvm cm

    Hi All,
    Can you tell me please difference B/W XREF DVM and How to populate them at runtime? Lookup-DVM syntax.

    Thanks
    Nirmal

  • RELEVANCY SCORE 2.90

    DB:2.90:Inherit Abstract Classe fc


    Can anyone show me how to make a class inherit all functionalitied from two difference abstract classes in my progam. thanks

    Jadebui.

    class a extends b ??????????
    {}

    abstract class b
    {}

    abstract class c
    {}

    DB:2.90:Inherit Abstract Classe fc

    if you want to declare both classes(b and c) as abstract you can not do multiple inheritances, try this way

    class a extends b{

    }

    abstract class b extends c{

    }

    abstract class c{

    }or you have to decide to declare one of the abstract classes as an interface

  • RELEVANCY SCORE 2.87

    DB:2.87:Diff B/W Native Code Compilation &Amp; Interpreted Compilation p8


    Hi,
    I want to know the difference between Oracle Native Code Compilation and Interpreted Compilation. Which one faster?, give simple example.

    Regards,
    Jayan

    DB:2.87:Diff B/W Native Code Compilation &Amp; Interpreted Compilation p8

    http://download-west.oracle.com/docs/cd/B14117_01/appdev.101/b10807/12_tune.htm#sthref1340

  • RELEVANCY SCORE 2.87

    DB:2.87:Interface And Abstract Class dd


    what is the difference between interface and Abstract class?
    What are the situations we have to go for interface and Abstract class?

    DB:2.87:Interface And Abstract Class dd

    Neither an abstract class nor an interface can be instantiated (meaning you cannot create the object directly with the "new" keyword). They are both similar in that they have abstract methods. (Technically, you can create an abstract class with no abstract methods, but I would question the utility of making that class abstract in the first place).

    The two main differences are the following:

    Implementation: An abstract class can implement methods, since it is a class. An interface can never implement any methods, it only declares their signatures.Inheritance: A given class can implement an unlimited number of interfaces. A class can only extend one class. In general, I use the following rules of thumb when deciding (other developers may have differing opinions):

    Given the choice, use an interface. Since you can implement an unlimited number of interfaces, they are not as restricted, from a class hierarchy perspective. If you have several classes with the same instance (class) variables declared and several methods that all accomlplish the same thing (normally, they will even have segments of code copy-pasted between classes), then re-factor the common variables and code into an abstract class. When using interfaces, always consider delegation. Delegation is something like the following:interface IFoo {
    abstract public void bar();
    }

    public class FooDelegate {
    final public void bar() {
    // Default implementation goes here
    }
    }

    public class FooImpl implements IFoo {

    final public void bar() {
    new FooDelegate().bar();
    }
    }

    The advantage of delegation is that you can write a "helper" that contains the implementation, and then the classes that actually implement the interface can simply use the helper (e.g., delegate the implementation to another class).

    - Saish

    "My karma ran over your dogma." - Anon

  • RELEVANCY SCORE 2.87

    DB:2.87:Difference Between Interface And Abstract Interface 8a


    What is the difference between the following?

    interface Sample{

    }and

    abstract interface Sample{

    }Please explain it with an example.

    DB:2.87:Difference Between Interface And Abstract Interface 8a

    An all the interface's methods are public and abstract, even if you don't declare them as such. And all it's variables are public, static final, even if you don't declare them as such.

  • RELEVANCY SCORE 2.87

    DB:2.87:Difference Between Abstract Interface And Normal Interface za


    Hello Friends,

    What is the Difference between abstract interface and normal interface?....

    DB:2.87:Difference Between Abstract Interface And Normal Interface za

    What is the Difference between abstract interface and
    normal interface?....The difference is that you didn't follow convention in the first case. All interfaces are implicitly abstract so you don't have to declare them as such.

  • RELEVANCY SCORE 2.87

    DB:2.87:Difference Between A Abstract Class With 4 Abstract Methods And A Interface With 4 Abstract Methods. 8c


    what is the difference between Difference between a Abstract class with 4 abstract methods and a Interface with 4 abstract methods.

    DB:2.87:Difference Between A Abstract Class With 4 Abstract Methods And A Interface With 4 Abstract Methods. 8c

    Your question is better rephrased as: What is the difference between an abstract class and a interfase?
    This has been discused here
    http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/67451957-f0bd-4b9b-a2c0-16f604ce8643
    Regards

  • RELEVANCY SCORE 2.87

    DB:2.87:Diff B/W Adapter And Interface ms


    Hi XI Expertsi'm new to XiIn Xi we r using adapters and interfaces ....actually whats the difference b/w an Adapter and Interface.could any one explain me.regds venky

    DB:2.87:Diff B/W Adapter And Interface ms

    Hi,here is some xtract from sap-helpinterface:You use a message interface to describe a platform-independent or programming-language-independent interface, which you want to use to exchange messages between application components using SAP Exchange Infrastructure. Depending on the communication parameters defined for a message interface, it can either have the task of sending a request (outbound) or receiving a request (inbound). Assigning an outbound interface to an inbound interface enables multiple communication parties to exchange messages with each other (see also: Communication Parties (Case Examples)). The following connections are possible for message interfaces: A message interface with another message interface A message interface with an imported interface A message interface with an interface configured by an adapterAdapter:PurposeAdapters enable the Integration Engine and the Partner Connectivity Kit (PCK) to communicate with different applications.Implementation ConsiderationsYou only require an adapter to communicate with SAP systems older than Release 6.20 and with external systems. A direct system connection using proxies and without additional adapters is supported for SAP systems that are based on SAP Web Application Server 6.20 or higher.FeaturesAdapters connect the Integration Engine to SAP legacy systems, as well as to external systems.In this way, adapters integrate existing SAP components with SAP Exchange Infrastructure, for example. In the process, XML and HTTP-based documents are converted to IDocs (IDoc adapter) and RFCs (RFC adapter) and the other way around. This enables you to integrate your existing SAP infrastructure with the new SAP infrastructure, which is based on system integration and the exchange of XML messages.The plain HTTP adapter gives application systems the option of communicating with the Integration Engine and exchanging business data in a simple format, using an HTTP connection.Furthermore, the J2EE-based Adapter Engine provides you with various adapters that you can use to connect external systems to your Integration Engine. You can use these adapters to convert XML and HTTP-based messages to the specific protocols and formats of the respective external systems and the other way around. You can specify generic modules for adapters in the Adapter Engine in the module processor. These modules give the adapters additional functions. Modules describes the modules shipped by SAP.For more information about developing modules, see Adapter and Module Development. This section also provides information about how to create new adapters.In addition to the J2EE-based Adapter Engine, you can also use the plain J2SE-based Adapter Engine.please visit this link for detail information..its cool.http://help.sap.com/saphelp_nw04/helpdata/en/14/80243b4a66ae0ce10000000a11402f/frameset.htmin the left pane of this site expand the "Design and Configuration Time" node.then expand the "Design" node to find what you wanted.rewards points if its helpful to you , by clicking the radiobutton.

  • RELEVANCY SCORE 2.87

    DB:2.87:Difference Between An Interface And An Abstract Class 9f


    Hey:

    I'm curious, what's the difference between an interface and an abstract class? Thanks.

    DB:2.87:Difference Between An Interface And An Abstract Class 9f

    "You have an abstract class if you want to implement some of the methods in it, but you do not want users to make instances of the class or do not want to implement all of the methods. Take a look at some of the abstract classes in java.util. Nearly all of the methods are implemented already so that it's far easier to create new data structures than if only interfaces were provided. "

    That's what I was looking for. Thanks.

  • RELEVANCY SCORE 2.87

    DB:2.87:Abstract Class And Interface???? 39


    hi all, i would like to know the difference between abstract class and interface....could anybody enlighten me on this....

    DB:2.87:Abstract Class And Interface???? 39

    P.S. don't be a loser an put up multiple posts, especially on something so easy to do a search on.

  • RELEVANCY SCORE 2.86

    DB:2.86:Difference B/W Dyn Page Abstract Portal Component Pagejsp Dyn Page m1



    hi all...

    i know some difference b/w those...All know we can develope a portal application using Portal components such as

    Dyn page

    Abstract portal page

    Jsp Dyn page...

    but if we get a project from the client side,

    In which portal component type may we work?

    how can we decide which component type is better to work?

    for example if we choose Dyn page component...den what is the difference b/w Dyn pageAbstract pageJsp page?

    regards,

    ramn.

    DB:2.86:Difference B/W Dyn Page Abstract Portal Component Pagejsp Dyn Page m1


    hi kirupanand..

    thnx for ur response...i knew these things such as Dyn page is not seperated from MVC,easier to debug,using classlib..Jsp Dyn follows MVC,hard to debug,using taglib...

    but my question is how can we decide one portal component to create an application? which one could be suitable to work among these three types(Abstract portal comp,Dynpage,Jspdynpage)?

    regards,

    ramn.

  • RELEVANCY SCORE 2.86

    DB:2.86:Difference B/W Requiresnew &Amp; Required fs


    Hi

    Q 1)Can any one elaborate the Difference b/w requiresNew required in BPEL

    Q 2)when i am using faultPolices for BPEL it is supporting only when BPEL is in requiresNew

    DB:2.86:Difference B/W Requiresnew &Amp; Required fs

    Hi

    Q 1)Can any one elaborate the Difference b/w requiresNew required in BPEL

    Q 2)when i am using faultPolices for BPEL it is supporting only when BPEL is in requiresNew

  • RELEVANCY SCORE 2.86

    DB:2.86:Diff B/W Targeting &Amp; Scenario mc


    hi,

    pls explain the difference between targeter,scenario concepts and when we wil use these?

    DB:2.86:Diff B/W Targeting &Amp; Scenario mc

    Slight nuance. You actually can use a targeter to choose the content to fill a slot. You just do it through a very short lived scenario (I think of it as a "shell" scenario, since it's only purpose is to choose the targeted to fill the slot).

    See http://docs.oracle.com/cd/E24152_01/Platform.10-1/ATGPersBusinessGuide/html/s0912usingatargetertodefinethecontent01.html

  • RELEVANCY SCORE 2.85

    DB:2.85:Difference B/W Intialization And Default.. p3



    hi plz tell differences b/w the difference b/w intialization and default..

    DB:2.85:Difference B/W Intialization And Default.. p3


    Hi,

    tables sflight.

    select-options s_fldate for sflight-fldate default '20030101' to

    '20031231' option bt sign i.

    *initialization.

    *clear s_fldate[].

    *s_fldate-low = '20060101'.

    *s_fldate-high = '20061231'.

    *s_fldate-option = 'BT'.

    *s_fldate-sign = 'I'.

    *append s_fldate.

    start-of-selection.

    select single * from sflight into sflight where fldate in s_fldate.

    write:/ sflight-fldate.

    Note: remove the comment for initialization, and execute, found the difference!

    Try this,

    KC

  • RELEVANCY SCORE 2.85

    DB:2.85:Difference B/W Abstract Class And Interface mf


    Hi,
    can anyone tell the difference between Abstract class and an Interface?

    Thanks in advance!

    DB:2.85:Difference B/W Abstract Class And Interface mf

    The majoor diiffernce is that Interface canot ber
    inherited while absract calss can be inherited
    one abract class can iheret other abstract class
    while Interface doesnot???

  • RELEVANCY SCORE 2.85

    DB:2.85:Java Interfaces And Abstract Classed fc


    what is the difference between interface and abstract class?

    DB:2.85:Java Interfaces And Abstract Classed fc

    I suggest you try writing some code and see.

  • RELEVANCY SCORE 2.84

    DB:2.84:Re: Interface &Amp; Abstract Class ax


    This question has been discussed "up to the tilt" in the forums. Do some searching.

    DB:2.84:Re: Interface &Amp; Abstract Class ax

    I want to know that what are the major differences
    betwwen Interface and abstract classYou cannot fool me. This is the OO version of the Indian rope trick. Everybody asking this question vanish into thin air never to be heard from again.

  • RELEVANCY SCORE 2.83

    DB:2.83:What Is The Exact Difference Between Abstract Classes And Interface 7m


    What is the exact difference between abstract classes and interface in real scenario???

    Plz could you give a practical example???

    Thanks

    DB:2.83:What Is The Exact Difference Between Abstract Classes And Interface 7m

    At least your head doesn't make a plonk sound.Mine just makes a splutchy bursting watermelon type sound.

    To the original poster - to make things simple, if there is any doubt about which you should use, use an interface. If the situation calls for an abstract class, you will know that an interface is the wrong choice, because it will be impossible to do what you want to do with an interface.

    Drake

  • RELEVANCY SCORE 2.83

    DB:2.83:Abstract Interface ss


    Hi All,
    What is abstract interface?What is the difference between Abstract interface and interface?
    If there is no difference why ServletRequest is abstract inteface.
    Thank You,
    Selvaraj

    DB:2.83:Abstract Interface ss

    Have a look at the JLS Chapter 9.1.1.1 abstract Interfaces
    Every interface is implicitly abstract. This modifier is obsolete and should not be used in new programs

  • RELEVANCY SCORE 2.83

    DB:2.83:Difference B/W Oracle 8i &Amp; 8lite f3


    Hi to all

    can anyone please tell me what's the difference between oracle 8i 8lite????Or they are the same????

    DB:2.83:Difference B/W Oracle 8i &Amp; 8lite f3

    Hi to all

    can anyone please tell me what's the difference between oracle 8i 8lite????Or they are the same????

  • RELEVANCY SCORE 2.83

    DB:2.83:Ddic sa



    difference b/w indexing Buffering.

  • RELEVANCY SCORE 2.83

    DB:2.83:What Is The Different B/W System.Out &Amp; System.Err &Amp; System.In pp


    What is the different b/w
    System.out
    System.err
    System.in

    Regards
    Dhinesh

  • RELEVANCY SCORE 2.82

    DB:2.82:What Is Difference B/W Dvm &Amp; Cross References? 7s


    what is difference b/w DVM Cross references?
    I knew what is DVM ,XRef conceptually,I felt both are same, but there is some difference, can somebody please clarify in detail?

    Thank you,

    RR.

    DB:2.82:What Is Difference B/W Dvm &Amp; Cross References? 7s

    DVM is static where as cross reference is dynamic.If you want to map values between many systems and those are static ( line country codes,NameIntials...) , DVM is used.But if you want to map/populate values between many systems that are dynamic ( like populate userid,accountno,employye number...), cross reference is used.

  • RELEVANCY SCORE 2.82

    DB:2.82:Who Can Tell The Difference Of The Abstract Interface Class? xf


    someone ask me that he had a abstarct interface class, such as :
    public abstract interface Book{
    }
    I was comfused, who can tell me why use it?

    DB:2.82:Who Can Tell The Difference Of The Abstract Interface Class? xf

    Cross post - http://forum.java.sun.com/thread.jspa?threadID=694601tstart=0

  • RELEVANCY SCORE 2.81

    DB:2.81:Situation Where You Are Interface &Amp; Abstract Class? fj


    please let me know if any one knowns answer for the above question

    DB:2.81:Situation Where You Are Interface &Amp; Abstract Class? fj

    For a concrete example check out the Collections API.

    List is defined as an Interface
    They also define an AbstractList class which provides a lot of the common functionality for a List.

  • RELEVANCY SCORE 2.81

    DB:2.81:Diff B/W Post &Amp; Commit jk


    What is the difference between POST COMMIt in the FORMS.
    I am not able to understand it

    DB:2.81:Diff B/W Post &Amp; Commit jk

    POST sends all outstanding changes to the database (inserts, updates, deletes) but does not commit the changes just yet. This means the changes are not final yet and are also not visible to other sessions just yet.

    A COMMIT makes the changes from the POST final and makes them visible to other sessions. A COMMIT also performs an implicit POST sending all outstanding changes to the database first, before performing the actual commit.

    So, in most situations commit is enough and you rarely need a POST.

  • RELEVANCY SCORE 2.81

    DB:2.81:Difference Between Abstract Class And Interface j3


    What is the difference between anabstract class and aninterface ?

    DB:2.81:Difference Between Abstract Class And Interface j3

    Hi,
    Check this link differencebetween an abstract class and an interfacePS.Shakeer Hussain

  • RELEVANCY SCORE 2.81

    DB:2.81:Possible Modifiers For Interface Inside Class, Interface Inside Interface 8m


    what are the possible modifiers for a interface inside interface,
    interface inside class,
    a. abstract
    b. extends
    c. final
    d. private
    e. protected
    f. public

  • RELEVANCY SCORE 2.80

    DB:2.80:Difference B/W Oracle 11i &Amp; 12 ( Technical / Functional) 33


    hello,

    i am looking for document which can explain comparision b/w oracle e-business 11i and 12,

    technical
    functional

    is 12 stable version as we r plannig to buy oracle e-business, can we go for 11i or 12 is ok

    also we have implemented 11i in sister company and some interface work done b/w oracle 11i and other inhouse applications

    if we go for 12 is interface work will be a lot, or it can be done with slight changes as per 12.

    appreciate if someone send above documents it will help a lot in making right decision.

    currently we dont have metalink id as we r in the process of getting oracle license, after that we can get that.

    thanks regards,

    hashmat jamal
    hashmatjamal@yahoo.com

    DB:2.80:Difference B/W Oracle 11i &Amp; 12 ( Technical / Functional) 33

    thats why i request if can get some information about subject matter as it is very important for taking decision and understanding them.Would love to help, but as stated before it is not possible.

  • RELEVANCY SCORE 2.79

    DB:2.79:What Is An Interface &Amp; Abstract Class ? zm


    hi ,
    i am new to java,
    pls give the answer for this question,

    what is an interface abstract class ?
    why we go for interfaces and abstract classes?

  • RELEVANCY SCORE 2.79

    DB:2.79:Differece B/W Sql Tunning &Amp; Sql Access Advisor kk


    What the difference b/w these 2 , i know SQL Access advisor suggest for index or materialize view for fast query....what SQL tunning do?

    DB:2.79:Differece B/W Sql Tunning &Amp; Sql Access Advisor kk

    Mithu,

    Please stop lying!!!
    You are not new in this field. You have been asking RTFM questions for almost three years!!! When I had three years experience, I didn't need to ask the questions you think you need to ask. I LOOKED THEM UP IN THE DOCUMENTATION!!

    I will continue to expose your attitude as abysmal.
    You are in flagrant violation of the Etiquette in this forum.
    You are a parasite. You don't want to do anything to resolve your own questions.
    You are a disgrace to the DBA profession.
    In fact, because of this I may want to have your account removed.

    --
    Sybrand Bakker
    Senior Oracle DBA

  • RELEVANCY SCORE 2.79

    DB:2.79:Abstract Class And Interface???? ja


    hi all, i would like to know the difference between abstract class and interface....could anybody enlighten me on this....

    DB:2.79:Abstract Class And Interface???? ja

    search the forums, lot's of times answered this one has been.

  • RELEVANCY SCORE 2.79

    DB:2.79:Difference Between Interface And Abstract Class 71


    I'm confused on what is the difference of implementing n abstract class and inheriting an interface?

    DB:2.79:Difference Between Interface And Abstract Class 71

    Hi,
    i want to add a few more differences --
    1.The variable defined inside an interface is public, static and final means it's basically a constant,But in case of abstract class you can hide the variable in the implementation class means you can change the value of the variable.

    One very important thing about the these two feature is when to use what?
    Ans:If a group of object is having some common property such that they are not going to be changed over a period then create an Abstract class out of that property.But if only some object is having a common property but not all then create an interface out of that property and implement all that property in Subclass.

    Thanks.

  • RELEVANCY SCORE 2.79

    DB:2.79:Difference B/W String S1="Abc"; &Amp; String S2 = New String("Abc"); za


    What is the difference b/w String s1="abc"; String s2 = new String("abc");

    DB:2.79:Difference B/W String S1="Abc"; &Amp; String S2 = New String("Abc"); za

    If your talking about equality they are not equal.
    If your talking about creation they are equal.

  • RELEVANCY SCORE 2.78

    DB:2.78:Regarding Prompts &Amp; Variables f8


    Hi experts,

    Just i need to know what is the difference b/w Local Prompts Global Prompts in OBIEE.

    At the same time i want know the difference b/w local variables global Variables in OBIEE.

    Thanks
    Shekar

    DB:2.78:Regarding Prompts &Amp; Variables f8

    1: http://lmgtfy.com/?q=OBIEE+prompts+scope

    2: http://lmgtfy.com/?q=OBIEE+variabeles+session+repository

    Regards

    John
    http://obiee101.blogspot.com/

  • RELEVANCY SCORE 2.78

    DB:2.78:Abstract? Interface? dm


    Hello! Can anybody explain me the difference between abstract classes and interface? when should i use them? Can you please give me examples?

    Thank you in advance!

    DB:2.78:Abstract? Interface? dm

    *** Abstract:

    Abstract classes are classes which are not designed to be used by the programmer. They simply enforce the declaration of certain methods on any class which subclasses them. Abstract classes can contain method declarations and instance variables.

    An example would be a very simple driving game, which offers a choice of different cars. Each car moves in the same manner, acceleration, etc. The only difference is the graphic which is used to display each car on screen. For this implementation, it would make sense to have an abstract class 'Car' which defines all the methods such as getSpeed, getDirection, setSpeed, setDirection, and so on. Its one abstract method would be getGraphic. The Car class cannot define this method since it models the 'general case' car, and so does not know what graphic is appropriate for each car.

    abstract class Car {

    /**
    * Define all the methods which are appropriate for each Car object
    */
    public int getSpeed() {
    return speed;
    }

    public void setSpeed(int i) {
    speed=i;
    }

    //etc

    //declare the abstract method
    public abstract Icon getGraphic();
    }Now you could subclass the Car class for a particular Car object:
    public class Mini extends Car {
    public Icon getGraphic() {
    return new ImageIcon("Mini.gif");
    }
    }To summarise, abstract classes are useful if you have a set of similar objects which have most of the same properties, but some method(s) are only appropriate for each individual object.

    *** Interface:

    Interfaces are useful when you need to disguise your object(s) as another type of object. By implementing the interface, the VM can recognise this.

    Interfaces differ from abstract classes in that you must write all the functions yourself. They provide no properties or methods in the base class, whereas abstract classes do.

    I hope this helps, but you would probably be best to scour the java tutorial for this topic for better examples.

  • RELEVANCY SCORE 2.78

    DB:2.78:Awr &Amp; Gather_Stats_Job Stats Jobs Difference 3f


    10gR2 version
    What the difference b/w Optimizer stats gathered by GATHER_STATS_JOB and stats collected by AWR, and what are areas of stats collections for both

    DB:2.78:Awr &Amp; Gather_Stats_Job Stats Jobs Difference 3f

    10gR2 version
    What the difference b/w Optimizer stats gathered by GATHER_STATS_JOB and stats collected by AWR, and what are areas of stats collections for both GATHER_STATS_JOB
    http://www.oracle-base.com/articles/10g/PerformanceTuningEnhancements10g.php#automatic_optimizer_statistics_collection

    AWR
    http://www.oracle-base.com/articles/10g/AutomaticWorkloadRepository10g.php

    HTH
    Anantha.

  • RELEVANCY SCORE 2.76

    DB:2.76:Re: Still Confusing (Difference B/W Abstract And Interface) cz


    pgeuens...Then how could you create a Thread class which must extend some other different class without using Runnable interface?
    I think this is the solution for multiple inheritance.Because sometimes there happen some situations which you are facing this kind of problem. But of course not using multiple inheritance is the best, you are completely right....

    Ayberk Cansever

    DB:2.76:Re: Still Confusing (Difference B/W Abstract And Interface) cz

    georgemc wrote:
    Well, extend is just a keyword.Right. And both "extends" and "implements" ultimately mean "inherits from". In fact both keywords could be replaced with "inherits" and nothing else about the language would change, and it'd still be an accurate description of what goes on.

    Inheritance isn't restricted to implementation re-use, type re-use is still inheritance.A more important aspect of inheritance than implementation. Inheritance is much more about type than about implementation.

  • RELEVANCY SCORE 2.76

    DB:2.76:Abstract And Interface fa


    Dear Sir/Madam,

    Please let me know the difference between Abstract class and Interface.

    DB:2.76:Abstract And Interface fa

    I disappeared as i was checking the forums in javaworld.com, but now i will keep this site as main.

  • RELEVANCY SCORE 2.76

    DB:2.76:Good Simple Example Of Difference Between Interface And Abstract Class 83


    Hi All,

    I am new to java...

    I am confused lot about the difference between interface and abstract class....

    Can anybody tell me the difference between interface and abstract class with some good and simple exmple...

    Kindly help me...

    Thanks in advance...

    DB:2.76:Good Simple Example Of Difference Between Interface And Abstract Class 83

    phdk wrote:
    georgemc wrote:
    public class AbstractClassThatIsntAnInterface {

    public abstract void doSomething();
    public abstract void doSomethingElse();

    }Nice naming for a nonabstract class! ;-)

    @OP: read this: [http://java.sun.com/docs/books/tutorial/java/IandI/abstract.html]Er, you, um, spotted my deliberate mistake.....

  • RELEVANCY SCORE 2.76

    DB:2.76:Diff B/W Proc &Amp; Trigger 3p


    Hi,

    Could someone tell me what's the difference between stored procedure and triggers..? Thanks.

    DB:2.76:Diff B/W Proc &Amp; Trigger 3p

    Hi,

    Could someone tell me what's the difference between
    stored procedure and triggers..? Thanks.I can

    http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14220/sqlplsql.htm

    and

    http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14220/triggers.htm#sthref3171

  • RELEVANCY SCORE 2.76

    DB:2.76:Difference B/W Analyzer &Amp; Reports 19


    Hello all,
    Can anybody explain difference b/w analyzer reports?

    Thanks

    DB:2.76:Difference B/W Analyzer &Amp; Reports 19

    Hi,

    1. If you are interested to know the differences between analyzer and financial reports , then web anayzer is more for presentation and reports meant for that.

    2. Its web based . Coming the the reports , we usually use it for HFM kind of applications ,where we got to make books for circulation ( FR has feel of excel in it).

    3. Though both are capable of talking to OLAP(essbase) and HFM , it depends on your purpose of reporting

    Sandeep Reddy Enti
    HCC
    http://hyperionconsultancy.com/

  • RELEVANCY SCORE 2.75

    DB:2.75:Differance B/W Customization &Amp; Extension? 8k


    Hi guys ,
    kindly guide me about difference between customization and extension .When we use them.

    Thanks
    SK

    DB:2.75:Differance B/W Customization &Amp; Extension? 8k

    Hi,

    Please see these docs.

    Note: 216589.1 - Step By Step Guide to Creating a Custom Application in Applications 11i
    Note: 105127.1 - FAQ (Customization)
    Note: 122452.1 - Global Customer Services Policy Regarding Customizations
    Note: 101048.1 - Customizing/Extending Oracle Applications Release 11 FAQ

    Thanks,
    Hussein

  • RELEVANCY SCORE 2.74

    DB:2.74:Difference B/W Class &Amp; Instace Variable 9p


    can any one plz tell me the difference b/w class variable instance variable.

  • RELEVANCY SCORE 2.74

    DB:2.74:What Is The Difference Between Abstract And Interface? zd


    Could some one explain what is the difference between abstract class and interface class.

    Lets say I'm creating class why would I choose abstract over interface?

    THanks.

    DB:2.74:What Is The Difference Between Abstract And Interface? zd

    The difference between abstract classes and interfaces is interfaces are defined methods only. In abstract class methods are derived.