prototype模式是一种对象创建型模式，他采取复制原型对象的方法来创建类的实例，使用原型创建出来的实例具有和原型一样的数据
package com.org.prototype;
import java.util.ArrayList;
import java.util.List;
public class Person implements Cloneable{//实现Cloneable接口
// 姓名
private String name;
// 年龄
private int age;
// 性别
private String sex;
//朋友
private List<String> friends;
public List<String> getFriends() {
return friends;
}
public void setFriends(List<String> friends) {
this.friends = friends;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public Person clone() {//实现克隆的方法
try {
Person person = (Person)super.clone();
List<String> newfriends = new ArrayList<String>();
for(String friend : this.getFriends()) {
newfriends.add(friend);
}
person.setFriends(newfriends);
return person;
} catch (CloneNotSupportedException e) {
e.printStackTrace();
return null;
}
}
}
客户端代码
package com.org.prototype;
import java.util.ArrayList;
import java.util.List;
public class MainClass {
public static void main(String[] args) {
Person person1 = new Person();
List<String> friends = new ArrayList<String>();
friends.add("James");
friends.add("Yao");
person1.setFriends(friends);
Person person2 = person1.clone();
System.out.println(person1.getFriends());
System.out.println(person2.getFriends());
friends.add("Mike");
person1.setFriends(friends);
System.out.println(person1.getFriends());
System.out.println(person2.getFriends());
}
}
原文：http://my.oschina.net/goudingcheng/blog/489811