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Thread: will it compile?

  1. #1
    Expert Member
    Join Date
    Oct 2005

    will it compile?

    hi friends
    I have an interface that is implemented by 100 classes, if I add a method to the interface will my classes compile? How can I fix any errors?


  2. #2
    Expert Member
    Join Date
    Dec 2006

    Re: will it compile?


    All the implementing classes will not compile. An interface is a contractual obligation. By implementing that interface you are guaranteeing that your class will fulfill its contractual obligation. If you add a new method to an interface then, by definition, all classes implementing that interface will have to implement the new method.


    Nikhil Rattan

  3. #3
    Junior Member
    Join Date
    Apr 2006

    Re: will it compile?

    lets say you have an interface IInterface which is implemented by 100 classes.
    Now u wana add a method to the interface but not all of the implemented classes need to add the method.

    Create another interface lets say
    ISubInterface implements IInterface

    Now use any one depending on your requirement.

    There is no other way to fix ur problem

  4. #4
    Junior Member
    Join Date
    Feb 2007

    Re: will it compile?

    hi Masif,

    small correction, an interface can only extend another interface but an interface can not implement another interface.

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