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Thread: Object as Reference not working

  1. #1
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    Exclamation Object as Reference not working

    public class GG{
     
    	public static void main(String[] args) {
    		Integer i = new Integer(10);
    		System.out.println("Before Call:"+i);
    		change(i);
    		System.out.println("After Call:"+i);
     
    	}
     
    	public static void change(Integer x){
    		x=20;
    	}
    }
    Here the output is coming
    Before Call:10
    After Call:10


    I am confused when i am passing an object in a function then why the value is not changed as objects are passed by reference??
    Last edited by helloworld922; March 9th, 2010 at 10:33 AM.


  2. #2
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    Default Re: Object as Reference not working

    Double posted and answered on the Oracle forums.
    New To Java - Object as Reference not working..Please help..!!! [Locked]

    db

  3. #3
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    Default Re: Object as Reference not working

    HI..Can u please tell me the link from where i can see a solution on oracle forums

    Thnks

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    Default Re: Object as Reference not working

    The link is right there in my previous response. Or log in to the Oracle forums and view your profile, where you will find a list of your posts.

    db

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    Default Re: Object as Reference not working

    Dont know if this has been answered or not, but you are using local variables, and expecting a global change. You have to either make i global, or change within the main method

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