interface  接口名{

    //静态常量,抽象方法

}

package com.tanlei.newer;

//动态绑定

public class InterfaceDemo {

    public static void main(String[] args) {

		Personssss p=new Personssss();

		Child child=new Child();

		tomcat tomcat=new tomcat();

		p.feed(child);

		p.feed(tomcat);

	}

}

interface Iability{

	 //接口中只能存放公有的静态常量和抽象方法

	/*public static  final  int  number=1;

	public abstract void show();*/

	void  eat();

}

class Personssss{

	/*public void feed(Child child) {

		child.eat();

	}

	public void feed(tomcat tomcat) {

		tomcat.eat();

	}*/

	//接口的引用变量可以引用其实现类的对象

	public void feed(Iability iability) {

		iability.eat();

	}

}

class  Child implements Iability{

	public void eat() {

		System.out.println("吃米粉");

	}

}

class  tomcat implements Iability{

	public void eat() {

		System.out.println("吃鱼");

	}

}