// housekeeping/Leaf.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.

// Simple use of the "this" keyword

public class Leaf {

int i = 0;

Leaf increment() {

i++;

return this;

}

void print() {

System.out.println("i = " + i);

}

public static void main(String[] args) {

Leaf x = new Leaf();

x.increment().increment().increment().print();

}

}

/* Output:

i = 3

*/