wolf.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 chapter7;
public class Wolf extends Animal 
{
	private String wolfBreed;
	private String wolfcolour;
	public Wolf()
	{
		super("狼");
	}
	public Wolf(String colour)
	{
		super("狼");
		this.wolfBreed = "unkown";
		this.wolfcolour = colour;
	}
	
	public  void eat(String food)
	{
		System.out.print("我是一只狼,");
		if(!food.equals("羊"))
		{
		   System.out.println("我要吃羊");
		}
		else
		{
			super.eat("羊");
		}
	}
	
}