设计模式-模板方法模式

public abstract class AbstractTemplate {    //模板方法
    public void templete(){
        first();
        second();
        third();
    }    //下面三个抽象方法需要子类来具体实现
    public abstract void first();    public abstract void second();    public abstract void third();

}

public class ConcreteTemplete extends AbstractTemplate{    @Override
    public void first() {
        System.out.println("第一步开启冰箱");
    }    @Override
    public void second() {
        System.out.println("第二步把大象塞进去");
    }    @Override
    public void third() {
        System.out.println("第三步关闭冰箱");
    }

}

public class Client {    public static void main(String[] args) {
        AbstractTemplate template=new ConcreteTemplete();
        template.templete();
    }
}