- public class JPD01 {
- 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();
- }
- }
- public class Animal {
- String name;
- int age;
- double w;
-
- Animal(String n, int a, double w)
- {
- name=n;
- age=a;
- this.w=w;
- }
- void showProfile()
- {
- System.out.printf("%s今年%d歲,體重%.2f公斤%n", name, age, w);
- }
- }
- 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 |