练习1

package com.atguigu.exercise;
public class Boy {
    //属性
    private String name;
    private int age;
    //构造器
    public Boy(){
    }
    public Boy(String name){
  this.name = name;
    }
    public Boy(String name,int age){
  this.name = name;
  this.age = age;
    }
    //方法
    public void setName(String name){
  this.name = name;
    }
    public String getName(){
  return name;
    }
    public void setAge(int age){
  this.age = age;
    }
    public int getAge(){
  return age;
    }
    public void marry(Girl girl){
  System.out.println("我想娶"+girl.getName());
    }
    public void shout(){
  if(this.age >= 22){
      System.out.println("你可以去合法登记了！");
  }else{
      System.out.println("你还不能结婚！");
  }
    }
}

package com.atguigu.exercise;
public class Girl {
    // 属性
    private String name;
    private int age;
    // 构造器
    public Girl() {
    }
    public Girl(String name) {
  this.name = name;
    }
    public Girl(String name, int age) {
  this.name = name;
  this.age = age;
    }
    // 方法
    public String getName() {
  return name;
    }
    public void setName(String name) {
  this.name = name;
    }
    public void marry(Boy boy){
  System.out.println("我想嫁给你"+ boy.getName());
    boy.marry(this);
    }
    public int compare(Girl girl){
  return this.age - girl.age;
    }
}

package com.atguigu.exercise;
public class BoyGirlTest {
    public static void main(String[] args) {
  Boy boy = new Boy("罗密欧",21);
  boy.shout();
  Girl girl = new Girl("朱丽叶",18);
  girl.marry(boy);
    }
}