关于类,接口,继承作用,各位大神还有什么总结么? - 黑马程序员技术交流社区

class Test_Animal {
public static void main(String[] args) {
Cat c = new Cat("加菲",3);
c.eat();
c.sleep();
System.out.println("---------------------------");
JumpCat jc = new JumpCat("玛莎",4);
jc.eat();
jc.sleep();
jc.jump();
System.out.println("---------------------------");
Dog d = new Dog("哈巴",6);
d.eat();
d.sleep();
System.out.println("---------------------------");
JumpDog jd = new JumpDog("藏獒",5);
jd.eat();
jd.sleep();
jd.jump();
System.out.println("---------------------------");
}
}
/*
* 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; //属性name
private int age; //属性age
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(); //抽象方法eat
public abstract void sleep(); //抽象方法sleep
}
interface Jumping { //动物调高接口
public abstract 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(){ //重写eat方法
System.out.println("我是" + this.getName() + ",我吃鱼,今年" + this.getAge() + "岁!");
}
public void sleep() { //重写父类sleep方法
System.out.println("我的白天晚上都睡!");
}
}
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() { //重写接口中jump方法
System.out.println("我会调高");
}
}
class Dog extends Animal {
public Dog() {} //空参构造
public Dog(String name,int age) { //有参构造
super(name,age);
}
public void eat() { //重写父类方法eat
System.out.println("我是" + this.getName() + ",我吃肉,今年" + this.getAge() + "岁!");
}
public void sleep() { //重写父类方法sleep
System.out.println("我白天睡觉,晚上看门!");
}
}
class JumpDog extends Dog implements Jumping {
public JumpDog() {} //空参构造
public JumpDog(String name,int age) {//有参构造
super(name,age);
}
public void jump() { //重写接口jump方法
System.out.println("我是马戏团的狗,会跳高!");
}
}

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