Reference type return

package chapter6;


/*

reference type return


 */
class Data3 { int x; }
public class Ex6_8 {
    public static void main(String[] args){
        Data3 d = new Data3();
        d.x = 10 ;
        Data3 d2 = copy(d);

        System.out.println("d.x = " + d.x );
        System.out.println("d2.x = " + d2.x);

    }

    static Data3 copy(Data3 d){
        Data3 tmp = new Data3();
        tmp.x = d.x;
        return tmp;
    }
}