Prototype原型模式

使用原型实例来指定要创建对象的类型，通过复制这个原型来创建新对象。

public interface Prototype{
    Prototype Clone();
}
public class ConcretePrototype extends Prototype{
    private String filed;
    public ConcretePrototype(String filed){
        this.filed = filed;
    }
    @Override
    Prototype Clone(){
        return new ConcretePrototype(filed)
    }
    @Override
    public String toString(){
        return filed;
    }
}
public class client(){
    public static void main(String[] args){
        Prototype prototype = new ConcretePrototype("abc");
        Prototype clone = prototype.clone();
        System.out.print(clone);
    }
}

结果：

abc