person.java

这是JSP应用开发详解（第三版）课本上的源代码

package day06;

public class Person {
	String name;
	int age;
	String gender;
	Person partner;
	public Person(String name,String gender,int age ) {
		this.age = age;
		this.gender = gender;
		this.name = name;
	}
	public void marry(Person p){
		if(this.gender.equals(p.gender)){
			System.out.println("对不起，同性不能结婚！");
			return;
		}
		if((this.gender.equals("male") && this.age<24) || (this.gender.equals("female") && this.age<22)){
			System.out.println("年龄太小，不能结婚！");
			return;
		}
		if((p.gender.equals("male") && p.age<24) || (p.gender.equals("female") && p.age<22)){
			System.out.println("年龄太小，不能结婚！");
			return;
		}
		if(this.partner!=null || p.partner!=null){
			System.out.println("一方已婚，不能再结婚！");
			return;
		}
		System.out.println("恭喜，"+this.name +"和"+p.name+"结婚了！");
		this.partner=p;
		p.partner=this;
	}
	
	public static void main(String[] args){
		Person zhangsan=new Person("张三","male",25);
		Person lisi=new Person("李四","female",22);
		Person wangwu=new Person("王五","female",28);
		zhangsan.marry(lisi);
		zhangsan.marry(wangwu);
	}
}