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());
     }
 }

People

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;
     }
 }

People

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);
     }
 }

People