// operators/PassObject.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Passing objects to methods might not be
// what you're used to

class Letter {
 char c;
}

public class PassObject {
 static void f(Letter y) {
 y.c = 'z';
 }
 public static void main(String[] args) {
 Letter x = new Letter();
 x.c = 'a';
 System.out.println("1: x.c: " + x.c);
 f(x);
 System.out.println("2: x.c: " + x.c);
 }
}
/* Output:
1: x.c: a
2: x.c: z
*/