class Test1_Animal {
public static void main(String[] args) {
Cat c = new Cat("加菲",8);
c.eat();
c.sleep();
JumpCat jc = new JumpCat("跳高猫",3);
jc.eat();
jc.sleep();
jc.jump();
}
}
/*
* A:案例演示
* 动物类：姓名，年龄，吃饭，睡觉。
* 猫和狗
* 动物培训接口：跳高
*/
abstract class Animal {
private String name; //姓名
private int age; //年龄
public Animal() {} //空参构造
public Animal(String name,int age) {//有参构造
this.name = name;
this.age = age;
}
public void setName(String name) { //设置姓名
this.name = name;
}
public String getName() { //获取姓名
return name;
}
public void setAge(int age) { //设置年龄
this.age = age;
}
public int getAge() { //获取年龄
return age;
}
public abstract void eat(); //吃饭
public abstract void sleep(); //睡觉
}
interface Jumping { //跳高的接口
public void jump();
}
class Cat extends Animal {
public Cat() {} //空参构造
public Cat(String name,int age) {//有参构造
super(name,age);
}
public void eat() {
System.out.println("猫吃鱼");
}
public void sleep() {
System.out.println("侧着睡");
}
}
class JumpCat extends Cat implements Jumping {
public JumpCat() {} //空参构造
public JumpCat(String name,int age) {//有参构造
super(name,age);
}
public void jump() {
System.out.println("猫跳高");
}
}原文：http://blog.51cto.com/357712148/2132104