試在子類別中添加新的方法成員.- public class Ch69 {
- public static void main(String[] args) {
- Dog d1=new Dog("憨憨",2,1.28);
- Dog d2=new Dog("球球",1,1.35);
- Cat c1=new Cat("咪咪",3,0.95);
- d1.showProfile();
- d1.makeSound(2);
- d2.showProfile();
- d2.makeSound(3);
- c1.showProfile();
- c1.makeSound(5);
- }
- }
- class Animal{
-
- String name;
- int age;
- double weight;
-
- Animal(String n, int a, double w)
- {
- name=n;
- age=a;
- weight=w;
- }
-
- void showProfile()
- {
- System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
- }
- }
- class Dog extends Animal
- {
- Dog(String n, int a, double w)
- {
- super(n,a,w);
- }
- void makeSound(int x)
- {
- for(int i=1; i<=x; i++)
- System.out.print("汪~");
- System.out.println();
- }
- }
- class Cat extends Animal
- {
- Cat(String n, int a, double w)
- {
- super(n,a,w);
- }
- void makeSound(int x)
- {
- for(int i=1; i<=x; i++)
- System.out.print("喵~");
- System.out.println();
- }
- }
複製代碼 |