package case5;
public class abstractTest {
public static void main(String[] args) {
/********* begin *********/
// 分别实例化Student类与Worker类的对象,并调用各自构造方法初始化类属性。
Student s =new Student("张三",20,"学生");
Worker w =new Worker("李四",30,"工人");
s.talk();
w.talk();
// 分别调用各自类中被复写的talk()方法 打印信息。
/********* end *********/
}
}
// 声明一个名为Person的抽象类,在Person中声明了三个属性name age occupation和一个抽象方法——talk()。
abstract class Person {
/********* begin *********/
String name;
int age;
String occupation;
public abstract void talk();
/********* end *********/
}
// Student类继承自Person类,添加带三个参数的构造方法,复写talk()方法 返回姓名、年龄和职业信息
class Student extends Person {
/********* begin *********/
Student(String name,int age ,String occupation)
{
this.name=name;
this.age=age;
this.occupation=occupation;
}
public void talk(){
System.out.println("学生——>姓名:"+name+",年龄:"+age+",职业:"+occupation+"!");
}
/********* end *********/
}
// Worker类继承自Person类,添加带三个参数的构造方法,复写talk()方法 返回姓名、年龄和职业信息
class Worker extends Person {
/********* begin *********/
Worker(String name ,int age ,String occupation)
{
this.name=name;
this.age=age;
this.occupation=occupation;
}
public void talk()
{
System.out.println("工人——>姓名:"+name+",年龄:"+age+",职业:"+occupation+"!");
}
/********* end *********/
}
Level 5: Abstract Class - Java Object Oriented (Chapter 2) - Encapsulation, Inheritance and Polymorphism
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