package fengda;
//定義抽象類Animal
abstract class Animal{
//定義抽象方法shout()
abstract void shout();
}
//定義Dog類繼承抽象類Animal
class Dog extends Animal{
//實現(xiàn)抽象方法shout()
void shout() {
System.out.println("汪汪......");
}
}
class Cat extends Animal{
void shout() {
System.out.println("喵喵......");
}
}
//定義測試類
public class fengda01 {
public static void main(String[] args) {
Dog dog=new Dog();//創(chuàng)建Dog類的實例對象
dog.shout();//調(diào)用dog對象是的shout()方法
Cat cat=new Cat();
cat.shout();
}
}
