1.定义动物类
package 猫和狗;
public abstract class Animal {
private String name;
private String age;
public Animal() {
}
public Animal(String name, String age) {
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public abstract void eat();
}
2.定义猫类
package 猫和狗;
public class Cat extends Animal{
public Cat() {
}
public Cat(String name, String age) {
super(name, age);
}
@Override
public void eat() {
System.out.println("猫吃鱼");
}
}
3.定义狗类
package 猫和狗;
public class Dog extends Animal{
public Dog() {
}
public Dog(String name, String age) {
super(name, age);
}
@Override
public void eat() {
System.out.println("狗吃骨头");
}
}
4.测试类
package 猫和狗;
public class AnimalDemo {
public static void main(String[] args) {
Animal a1=new Cat();
a1.setName("小白");
a1.setAge("3");
System.out.println(a1.getName()+","+a1.getAge());
a1.eat();
System.out.println("-------------------------------");
Animal a2=new Cat("咪咪","3");
System.out.println(a2.getName()+","+a2.getAge());
a2.eat();
System.out.println("-------------------------------");
Animal d1=new Dog();
d1.setName("曲奇");
d1.setAge("6");
System.out.println(d1.getName()+","+d1.getAge());
d1.eat();
System.out.println("-------------------------------");
Animal d2=new Dog("布布","7");
System.out.println(d2.getName()+","+d2.getAge());
d2.eat();
System.out.println("-------------------------------");
}
}
