sheep.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter6;

public class Sheep extends Animal
{
	public void eat(String food)
	{
		if(food.equals("羊"))
		{
		   System.out.println("我要吃草");
		}
		else
		{
		   super.eat(food);
		}
	}
	
	public void drank()
	{
		System.out.println("我要喝水");
	}
}