3-this关键字

1.表示类中的属性和调用方法

package com.example;

/**
 * Created by Y on 16/4/13.
 */
public class People {
    private String name;
    private int age;

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
    public void tell(){
        System.out.println("name is:"+this.getName()+"age is :"+this.getAge());
    }
}

2.调用本类中的构造方法

package com.example;

/**
 * Created by Y on 16/4/13.
 */
public class People {
    private String name;
    private int age;
    public People(){
        System.out.println("这是无参数构造方法！");
    }
    public People(String name,int age){
        this();
        this.name = name;
        this.age = age;
    }
}

3.表示当前类的对象

package com.example;

/**
 * Created by Y on 16/4/13.
 */
public class People {
    public void tell(){
        System.out.print(this);
    }
}