【Java】【反射】通过多态完成反射类似功能

通过多态完成反射类似功能

public class Demo_Reflect {

    public static void main(String[] args) throws ClassNotFoundException {
        Juicer j = new Juicer();
        j.run(new Apple());// 榨苹果汁
        j.run(new Orange());// 炸橘汁
    }

}

interface Fruit {
    public void squeeze();// 榨汁
}

class Apple implements Fruit {

    @Override
    public void squeeze() {
        System.out.println("榨出一杯苹果汁");
    }
}

class Orange implements Fruit {

    @Override
    public void squeeze() {
        System.out.println("榨出一杯橘汁");
    }

}

class Juicer {
    public void run(Fruit f) {
        f.squeeze();// 执行榨汁
    }
}