- public class Ch68 {
- 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();
- d2.showProfile();
- c1.showProfile();
- }
- }
- 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);
- }
- }
- class Cat extends Animal {
- Cat(String n, int a, double w) {
- super(n, a, w);
- }
- }
複製代碼 |