- public class CH01 {
- public static void main(String[] args) {
- Dog d1=new Dog("憨憨",2,1.28,"棕色");
- Dog d2=new Dog("球球",1,1.35,"白色");
- Cat c1=new Cat("咪咪",3,0.95);
- d1.show();
- d1.sound(2);
- d2.show();
- d2.sound(3);
- c1.show();
- c1.sound(5);
- }
- }
- class Animal {
- String name;
- int age;
- double we;
- Animal(String n,int a,double w){
- name=n;
- age=a;
- we=w;
- }
- void show()
- {
- System.out.println(name+"今年"+age+"歲,體重"+we+"公斤");
- }
- }
- class Dog extends Animal{
- String col;
- Dog(String n, int a, double w,String c) {
- super(n, a, w);
- col=c;
- }
- void sound(int x){
- for(int i=1;i<=x;i++)
- System.out.print("汪~~");
- System.out.println();
- }
- void show()
- {
- System.out.println(name+"今年"+age+"歲,體重"+we+"公斤,毛色為"+col+"。");
- }
- }
- class Cat extends Animal {
- Cat(String n, int a, double w) {
- super(n, a, w);
- }
- void sound(int x){
- for(int i=1;i<=x;i++)
- System.out.print("喵!");
- System.out.println();
- }
- }
複製代碼 |