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Thread: Confused

  1. #1
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    Default Confused

    I don't understand why this won't work? thank you.

     
    public void duck(){
    		String yellow = "eric";
    		System.out.println("" + yellow);
    	}


  2. #2
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    Default Re: Confused

    What exactly do you mean when you say that this won't work?

    Where is your class? Where is your main method?
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    Default Re: Confused

    public class Wamidh {
     
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    	}
    public void duck(){
    		String yellow = "eric";
    		System.out.println("" + yellow);
    	}

  4. #4
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    Default Re: Confused

    Okay, and what exactly do you mean when you say this doesn't work? When do you call your duck() function?
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  5. #5
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    Default Re: Confused

    it won't say eric when I click run

  6. #6
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    Default Re: Confused

    Why would it? When do you call your duck() function?
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    wamidh (September 17th, 2014)

  8. #7
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    Default Re: Confused

    I am meant to call my function? how do I do this?

    thank you for your reply.

  9. #8
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    Default Re: Confused

    Yes, you have to call your function. Java won't automatically call your function for you.

    However, Java *does* automatically call the main() method for you. That's the whole point of the main() method.
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  10. #9
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    Default Re: Confused

    oh, thank you but what do I write to call my function duck?

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    Default Re: Confused

    Have you tried:

    public class Wamidh {
      public static void main(String[] args) {
        duck(); //<---
      }
     
      public void duck(){
        String yellow = "eric";
        System.out.println("" + yellow);
      }
    }

  12. #11
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    Default Re: Confused

    I tried that out but then it said cannot make static reference to non-static method duck() from the type Wamidh.
    Then I changed the duck function to static and then it worked!
    I don't know if it's right but at least it works now.
    public class Wamidh {
     
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    	duck();
     
    	}
     
    	public static void duck(){
    		String yellow = "eric";
    		System.out.println("" + yellow);
    	}

  13. #12
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    Default Re: Confused

    In all fairness, all i did was copy your 2nd post and replace // TODO Auto-generated method stub with duck();
    I didn't even look at anything else. Good on you figuring out static. =)

  14. #13
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    Default Re: Confused

    Be careful. Just sticking static in everywhere is not a good solution and goes against OO principals.
    Improving the world one idiot at a time!

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    KevinWorkman (September 18th, 2014)

  16. #14
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    Default Re: Confused

    okay, thank you.

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