加注释：“ctrl+/”，取消也是“ctrl+/”
this代表当前对象，谁来调用，谁就是此时的this
结构
package javastudy;
public class Person {
private String name;
private int height;
//setter
public void setName(String name){
this.name=name; //实例对象z来调用setName，此时this即为z;实例对象w调用，this即为w
}
public void setHeight(int height){
this.height=height;
}
//getter
public String getName(){
return name;
}
public int getHeight(){
return height;
}
}
package javastudy;
public class testit {
public static void main(String[] args) {
// TODO Auto-generated method stub
// z.name="zhang";
// z.height=120;
Person z=new Person();
z.setName("zhang");
z.setHeight(170);
System.out.println(z.getName());
System.out.println(z.getHeight());
Person w=new Person();
w.setName("wang");
w.setHeight(200);
System.out.println(w.getName());
System.out.println(w.getHeight());
}
}
执行结果
