counttest.java

西电科大的基于java面向对象教程

class Count {
	private int i = 0;
	 Count increment() {
		 i++;
		 return this;
	 }
	  void print() {
		 System.out.println("i = " + i);
	  }
}
public class CountTest{
	public static void main(String[] args) {
		Count x = new Count();
		 x.increment().increment().increment().print();
	 }
}