Java模板方法模式定义算法框架

package com.fanqiechaodan.templatemethod;
/**
 * @Classname CoffeeMaker
 * @Description 咖啡抽象类
 */
public abstract class CoffeeMaker {
    public final void makeCoffee() {
        boilWater();
        brewCoffee();
        pourInCup();
        if (isCondiments()) {
            addCondiments();
        }
    }
    private void boilWater() {
        System.out.println("煮水");
    }
    protected abstract void brewCoffee();
    private void pourInCup() {
        System.out.println("倒入杯子中");
    }
    /**
     * 钩子函数;是否加入调料,由子类决定是否重写
     *
     * @return
     */
    protected boolean isCondiments() {
        return true;
    }
    protected abstract void addCondiments();
}

public class AmericanoMaker extends CoffeeMaker{
    @Override
    protected void brewCoffee() {
        System.out.println("冲泡美式咖啡");
    }
    @Override
    protected void addCondiments() {
        System.out.println("加入牛奶和糖");
    }
    /**
     * 钩子函数;是否加入调料,由子类决定是否重写
     *
     * @return
     */
    @Override
    protected boolean isCondiments() {
        return false;
    }
}
public class LatteMaker extends CoffeeMaker{
    @Override
    protected void brewCoffee() {
        System.out.println("冲泡浓缩咖啡");
    }
    @Override
    protected void addCondiments() {
        System.out.println("添加奶泡和焦糖酱");
    }
}

package com.fanqiechaodan.templatemethod;
/**
 * @author fanqiechaodan
 * @Classname Demo
 * @Description 模板方法模式
 * @Date 2023/3/9 18:57
 */
public class Demo {
    public static void main(String[] args) {
        CoffeeMaker americanoMaker = new AmericanoMaker();
        americanoMaker.makeCoffee();
        System.out.println();
        CoffeeMaker latteMaker = new LatteMaker();
        latteMaker.makeCoffee();
    }
}