// "pass by reference" DIS
// modified by Kiri Wagstaff, wkiri@cs.cornell.edu
// How do you "pass an object"? technically, by value, but what you're
// really passing is the reference value, which is the address of the
// object. A call to the method stores the address of the object in
// the formal parameter of the method.
    
class Data1 
{
    int k = 0;
}

public class Pass1 
{
    public static void change(Data1 x) 
    {
	System.out.println("Before changing: " + x.k);
	x.k++;
	System.out.println("After changing: " + x.k);
    }
    
    public static void main(String[] args) 
    {
	Data1 d = new Data1();
	d.k = 1;
	System.out.println("Before passing: " + d.k);
	change(d);
	System.out.println("After passing: " + d.k);
    }
}