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Passing integer values by reference?

Posted on 1998-08-12
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Last Modified: 2010-04-16
Okay, okay, I know you can't really pass anything by reference in Java -- or, more precisely, that every time you pass an Object of any kind you're passing a reference. Well, that's all fine and well, except I want to pass two integers into a method that changes them and sends back the changes -- and as far as I can tell, the Integer object isn't mutable and there isn't any setValue() that I can use. I could, of course, wrap the two integers in a new Object type, but I find them cumbersome and ridiculously ungraceful, especially since the only thing's I'll be doing with this object is setting and getting one of two ints.

Any other less kludgy workarounds would be much appreciated.
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Question by:HoJu
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Author Comment

by:HoJu
ID: 1232471
(... um, change that sentence above to "I could, of course, wrap the two integers in a new Object type, but I find _the idea_ cumbersome and ridiculously ungraceful ..." I actually have made my own classes before. Honest.)
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evijay earned 100 total points
ID: 1232472
pass an array. Arrays are passed by reference



public class testit {

void myfunc(int[] results)
{
   results[0] = 10;
   results[1] = 20;
}

public static void main(String args[])
{
    int[] res = new int[2];
    myfunc(res);
    System.out.println(res[0] + " " + res[1]);
}
}
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