java:面向对象（学生和老师类的继承练习）

版权声明：本文为博主原创文章，未经博主允许不得转载 https://blog.csdn.net/qq_24644517/article/details/82563324

package Day08;

public class Demo8_Person {
    public static void main(String[]args){
        Student s=new Student();
        s.setAge(23);
        s.setName("小米");
        s.eat();
        s.study();
        System.out.println(s.getName()+"空参构造"+s.getAge());
        System.out.println("==========================================");
        Student s2=new Student("小明",24);
        s2.eat();
        s2.study();
        System.out.println(s2.getName()+"有参构造"+s2.getAge());
    }
}
class Person{
    private String name;
    private int age;
    public Person(){

    }
    public Person(String name,int age){
        this.name=name;
        this.age=age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getAge() {
        return this.age;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return this.name;
    }
    public void eat(){
        System.out.println(name+"人吃饭");
    }
}
class Student extends Person{
    public Student(){

    }
    public Student(String name,int age){
        super(name, age);
    }

    public void study(){
        System.out.println(getName()+"学生学习");//在子类中获取姓名的话使用getname，使用的话加上this或者super（不加隐藏了一个this代表的当前对象）
    }
}

class Teacher extends Person{

    public Teacher(){

    }
    public Teacher(String name,int age){
        super(name, age);
    }

    public void teach(){
        System.out.println("老师讲课");
    }
}