package ch4;


public class Leaf {
	int i; // 成员变量，或属性i

	Leaf(int i){ //构造方法，带有参数int i
		//this.i = i;
		this.i = i;
		System.out.println("运行到Leaf(int i)");
	}
	
	Leaf(){
		this(1);
		System.out.println("运行到Leaf()");
	}
	
	Leaf increment() {
		i++;
		return this;
	}
	
	void print() { 
		System.out.println("i = " + i); 
	}
	
	public static void main(String[] args) {
		Leaf leaf = new Leaf();
		
		//leaf.increment().increment().print();
	}
}