testpoly2.java

有关于java 的有关的练习的源代码即可执行程序

public class TestPoly2{
	public static void main(String[] args){
		Animal[] a=new Animal[11];
		a[0]=new Dog();
		a[1]=new Cat();
		a[2]=new Tiger();
		a[3]=new Sheep();
		a[4]=new Wolf();
		a[5]=new Monkey();
		a[6]=new Fish();
		a[7]=new Mouse();
		a[8]=new Snake();
		a[9]=new Panda();
		a[10]=new Bird();
		/*
		a1.eat();
		a2.eat();
		a3.eat();
		a4.eat();
		a5.eat();
		a6.eat();
		a7.eat();
		a8.eat();
		a9.eat();
		a10.eat();
		a11.eat();
		*/
		for(int i=0;i<a.length;i++){
			a[i].eat();
		}
	}
}
class Animal{
	public void eat(){}
}
class Dog extends Animal{
	public void eat(){
		System.out.println("Dog eat bone");
	}
}
class Cat extends Animal{
	public void eat(){
		System.out.println("Cat eat fish");
	}
}
class Tiger extends Animal{
	public void eat(){
		System.out.println("Tiger eat human");
	}
}
class Sheep extends Animal{
	public void eat(){
		System.out.println("Sheep eat grass");
	}
}
class Wolf extends Animal{
	public void eat(){
		System.out.println("Wolf eat sheep");
	}
}
class Monkey extends Animal{
	public void eat(){
		System.out.println("Monkey eat banana");
	}
}
class Fish extends Animal{
	public void eat(){
		System.out.println("Fish eat xia");
	}
}
class Mouse extends Animal{
	public void eat(){
		System.out.println("Mouse eat rice");
	}
}
class Snake extends Animal{
	public void eat(){
		System.out.println("Snake eat mouse");
	}
}
class Panda extends Animal{
	public void eat(){
		System.out.println("Panda eat bomb");
	}
}
class Bird extends Animal{
	public void eat(){
		System.out.println("Bird eat worm");
	}
}