接口的多态性

接口与具体的实现类之间也存在多态

package com.aff.inter;

public class TestInterface {
    //接口与具体的实现类之间也存在多态
    public static void main(String[] args) {
        Fang f = new Fang();
        TestInterface.test1(f);
        TestInterface.test2(f);
        TestInterface.test3(f);
    }

    public static void test1(Run r) {//Run r =  new  Fang();
        r.run();
    }

    public static void test2(Swimmer s) {//Swimmer s = new  Fang();
        s.swim();
    }

    public static void test3(Fly f) {//Fly f = new  Fang();
        f.flying();
    }

}

interface Run {
    public abstract void run();
}

interface Swimmer {
    void swim();
}

interface Fly {
    void flying();
}

class Fang implements Run, Swimmer, Fly {
    @Override
    public void flying() {
        System.out.println("可以飞的更高");
    }

    @Override
    public void swim() {
        System.out.println("可以游得更远");
    }

    @Override
    public void run() {
        System.out.println("可以跑得更快");
    }
}