谁能帮我看看(《java编程思想》里的例子)
mebio 2006-11-20 02:22:05 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();//这条语句
}
}
最后一条语句,那三个increment()都是怎么回事啊?