老师和学生案例

 

package df;

public class Persion {
    private String name;
    private String age;

    public Persion() {
    }

    public Persion(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;
    }
}

package df;

public class Teacher extends Persion{

    public Teacher(){}

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

    public void teach(){

        System.out.println("好好学习");
    }
}

package df;

public class PersionDemo {
    public static void main(String[] args) {

        Teacher t1 =new Teacher();
        t1.setName("linlin");
        t1.setAge("30");
        t1.teach();
        System.out.println(t1.getName()+","+t1.getAge());

        Teacher t2=new Teacher("lili","12");
        t2.teach();
        System.out.println(t2.getName()+","+t2.getAge());
    }
}