JAVA小练习58——abstract(抽象) 的练习 需求：描述一个动物、狗、鸟三个类

abstract class Animal{   

	String name;
	String color;

	public Animal(String name,String color){
		this.name= name; 
		this.color = color;
	}
	
	public Animal(){
	}
	
	//非抽象方法
	public void sleep(){}
	
	//移动...  抽象方法
	public abstract void run();
}


class Dog extends Animal{

	public Dog(String name,String color){
		super(name,color);
	}
	
	public Dog(){
		System.out.println("无参构造函数被调用了");	
	}

	public void bite(){
		System.out.println(name+"在狠狠的咬小贼");
	}

	public void run(){
		System.out.println(name+"四条腿跑得很快..");
	}
}

class Bird extends Animal{

	public Bird(String name,String color){
		super(name,color);
	}
	
	public void fly(){
		System.out.println(name+"在飞翔...");
	}

	public void run(){
		System.out.println(name+"两条腿跑得很悠闲..");
	}

}

class Demo58 {

	public static void main(String[] args) 
	{
		 
		Dog d = new Dog("牧羊犬","棕色");
		new Dog();
		
		d.bite();
		d.run();
		
		Bird b = new Bird("麻雀","灰色");
		b.fly();
		b.run();
		
	}
}