JAVA 构造器和this关键字详解

package com.TestArr;

public class Boy {
    private String name;
    private int age;
    
    public Boy() {
        
    }
    
    public void setName(String name) {
        =name;
    }
    
    //可以使用eclipse编辑器 自动创建构造器 
    // 选择 source选项 =>  generate constructor using fields 这个选项 
    public Boy(String name, int age) {

         = name;
        this.age = age;
    }

    public String getName() {
        return ;
    }
    public void setAge(int age) {
        this.age=age;
    }
    
    public int getAge() {
        return this.age;
    }
    
    public void marry(Girl girl) {
        System.out.println("我想娶"+girl.getName());
    }
    
    public void shout() {
        if(this.age>22) {
            System.out.println("你可以结婚了");
        }else {
            System.out.println("再等几年把");
        }
    }
    
    
   
}
 

girl类：

package com.TestArr;

public class Girl {
     private String name;
     private int age;
     
     public Girl(String name, int age) {
         = name;
        this.age = age;
    }

    public void setName(String name) {
         =name;
     }
     
     public String getName() {
         return ;
     }
     
     public void marry(Boy boy) {
         //女生说完
         System.out.println("我想嫁给"+boy.getName());
         //男生立马说
         boy.marry(this);
     }
     
     public Girl() {
        
    }

    public int compare(Girl girl) {
        if(this.age >girl.age) {
            return 1;
        }else {
            return 0;
        }
    }
         
}
 

测试类：

package com.TestArr;

public class BoyGirlTest {
        public static void main(String[] args) {
            Boy boy =new Boy("json",21);
            boy.shout();
            Girl g=new Girl("wy",22);
            g.marry(boy);
            
        }
}