原型模式学习笔记

简历的基本代码

package com.work;

import java.io.Console;

public class Main{
	public static void main(String[] args) {

	}
}
//简历
class Resume{
	private String name;
	private String sex;
	private String age;
	private String timeArea;
	private String company;
	public Resume(String name) {
		this.name = name;
	}
	//设置个人信息
	public void SetPersonalInfo(String sex,String age) {
		this.sex = sex;
		this.age = age;
	}
	//设置个人经历
	public void SetWorkExperience(String timeArea,String company) {
		this.timeArea = timeArea;
		this.company = company;
	}
	//显示
	public void Display() {
		System.out.println("{0} {1} {2}"+" "+name+" "+sex+" "+age);
		System.out.println("工作经历: {0} {1} "+ timeArea+" "+ company);
	}
}

基本代码的客户端调用代码

static void Main(String[] args) {
	Resume a = new Resume("大鸟");
	a.SetPersonalInfo("男", "29");
	a.SetWorkExperience("1998-2000", "xx公司");
	
	Resume b = new Resume("大鸟");
	b.SetPersonalInfo("男", "29");
	b.SetWorkExperience("1998-2000", "xx公司");

	Resume c= new Resume("大鸟");
	c.SetPersonalInfo("男", "29");
	c.SetWorkExperience("1998-2000", "xx公司");
	a.Display();
	b.Display();
	c.Display();
}

结果显示：

大鸟 男 29
工作经历 1998-2000 XX公司
大鸟 男 29
工作经历 1998-2000 XX公司
大鸟 男 29
工作经历 1998-2000 XX公司

---

这样的基本代码过于麻烦，下面是传引用的方法

static void Main(String[] args) {
	Resume a = new Resume("大鸟");
	a.SetPersonalInfo("男", "29");
	a.SetWorkExperience("1998-2000", "xx公司");
	
	Resume b = a;
	
	Resume c = a;
	
	a.Display();
	b.Display();
	c.Display();
}

---

下面为原型模式的具体实现：
原型类：

class Prototype implements Cloneable{
	private String id;
	public Prototype(String id) {
		this.id = id;
	}
	public String getId(){
		return id;
	}
	protected Object clone() throws CloneNotSupportedException {
		return (Prototype)super.clone();
	}
}

具体原型类：

class ConcretePrototype1 implements Cloneable{
	Prototype a ;
	public ConcretePrototype1(Prototype  a) {
		this.a = a;}
	protected Object clone() throws CloneNotSupportedException {
		return ( ConcretePrototype1 )super.clone();}
}

客户端代码

public class Main {
	public static void main(String[] args) throws CloneNotSupportedException {
		
		 ConcretePrototype1 p1 = new  ConcretePrototype1 (new Prototype("123"));
		 ConcretePrototype1 p2 = (ConcretePrototype1) p1.clone();
		 System.out.println(p1);
		 System.out.println(p2);
	}
}

简历类的原型实现：

package com.work;



class Resume implements Cloneable{
	private String name;
	private String sex;
	private String age;
	private String timeArea;
	private String company;
	
	public Resume(String name) {
		this.name = name;
	}
	//设置个人信息
	public void SetPersonalInfo(String sex,String age) {
		this.sex = sex;
		this.age = age;
	}
	//设置工作经历
	public void SetWorkExperience(String timeArea,String company) {
		this.timeArea = timeArea;
		this.company = company;
	}
	//显示
	public void Display() {
		System.out.println(name+" "+sex+" "+age);
		System.out.println(timeArea+" "+company);
	}
	protected Object clone() throws CloneNotSupportedException {
		return super.clone();
	}
}

新的客户端代码

//客户端调用代码
public class Main{
	public static void main(String[] args) throws CloneNotSupportedException {
		Resume a = new Resume("大鸟");
		a.SetPersonalInfo("男", "29");
		a.SetWorkExperience("1998-2000", "xx公司");
		Resume b = (Resume) a.clone();
		b.SetWorkExperience("1998-2006", "YY企业");
		Resume c = (Resume)a.clone();
		c.SetPersonalInfo("男", "24");
		a.Display();
		b.Display();
		c.Display();
	}
}

输出结果：

大鸟 男 29
工作经历 1998-2000 XX公司
大鸟 男 29
工作经历 1998-2006 YY企业
大鸟 男 24 
工作经历 1998-2000 XX公司