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Thread: Noobie to Java questions!! :D

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    Default Noobie to Java questions!! :D

    Hi all, I'm new to Java and am experiencing some difficulty with this assignment I have...

    I have programmed an interface with a bunch of non static methods and now when i extend that program to another class, I can't use the methods because they are non-static! :S What's the catch here?

    Thanks in advance!!

    -Chansey


  2. #2
    Member Darryl.Burke's Avatar
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    Default Re: Noobie to Java questions!! :D

    I'm sure I don't understand your question. Recommended reading: (lines below are links)
    The Java™ Tutorials
    How To Ask Questions The Smart Way
    SSCCE : Java Glossary

    db

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    Super Moderator helloworld922's Avatar
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    Default Re: Noobie to Java questions!! :D

    You don't extend an interface... you implement it. To use the methods found inside the interface, you must create an object of that type first. Ex.:

    public class A
    {
        // here is a non-static, or instanced method
        public void doIt()
        {
            System.out.println("hello world! this is an instanced object.");
        }
    }

    To use/call a non-static method:
    public static void main(String[] args)
    {
        A myObject = new A(); // instance it
        myObject.doIt(); // call the method with the myObject instance
    }

  4. The Following User Says Thank You to helloworld922 For This Useful Post:

    chansey123 (March 17th, 2010)

  5. #4
    Member Darryl.Burke's Avatar
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    Default Re: Noobie to Java questions!! :D

    Ah, but the real question is whether the 'interface' is an interface or a GUI. I suspect the latter.

    db

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    Default Re: Noobie to Java questions!! :D

    Thank you very much for the answers, I hadn't quite understood the whole instancing thing, but helloworld922's post fixed it! I can use my methods now!

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