原型模式

定义：用原型实例指定创建对象的种类，并通过拷贝这些原型创建新的对象。
Prototype.java

public abstract class Prototype implements Cloneable {
    public Prototype clone(){
        Prototype prototype=null;
        try {
            prototype= (Prototype) super.clone();
        } catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return prototype;
    }
}

ConcretePrototype.java

public class ConcretePrototype extends Prototype {
    public void show(){
        System.out.println("ConcretePrototype");
    }
}

Main.java

public class Main {
    public static void main(String args[]){
        ConcretePrototype concretePrototype=new ConcretePrototype();
        for(int i=0; i< 10; i++){
            ConcretePrototype clonecp = (ConcretePrototype)concretePrototype.clone();
            clonecp.show();
        }
    }
}