fish.java

java 教程相应的代码 全是自己写的内附注释 很容易看明白的

package demo.chapter05.inf;

public class Fish extends Animal implements Swimmer {

	@Override
	public void eat() {
		System.out.println("鱼吃浮游生物");
	}

	@Override
	public void swim() {
		System.out.println("鱼用尾巴游");
	}

}