How to do call by reference in Java?

Question

Since Java doesnt support pointers, How is it possible to call a function by reference in Java like we do in C and C++??

Answer 1

You cannot do call by reference in Java. Period. Nothing even comes close. And passing a reference by value is NOT the same as call by reference.

I used an array to do this...

    package method;


    import java.util.Scanner;

    public class InterChange {



        public static void main(String[] args) {

        Scanner sc=new Scanner(System.in);

        int a[]=new int[2];

        System.out.println("Enter two values");

        for(int i=0;i<2;i++) {

            a[i]=sc.nextInt();
        }




        hange(a);

        for(int i=0;i<2;i++) {

            System.out.println(a[i]);
        }


    }




     static int hange(int b[])
    {
        int temp;

        temp=b[0];
        b[0]=b[1];
        b[1]=temp;
        return b[0]&b[1];

    }

    }