[RESOLVED] Return multiple values

[jacsoft]

Hello,

I just read that it is impossible to alter a parameter passed to a function. But I need a function to return 2 values. An integer and a string. Since I cannot use a parameter does anyone have a solution to return 2 values in a recursive function?

Kind regards

[David Anton]

Use a separate class to encapsulate the two values and this class will be the return type of the method.

e.g.,

public class Foo
{
    int i;
    String s;
}

your method:

public Foo returnsFoo()
{
    ... return a new instance of the Foo class
}

If you need to alter alread-existing values, then just use a void method with a parameter of type 'Foo'.

public void AltersFoo(Foo f)
{
    f.i = 2;
    f.s = "new string";
}

This is perfectly valid since Java still allows you to modify the object via its public interface - you just can't reset the top reference 'f'.

[jacsoft]

Thanks man, I have it working!