学生和工人

class PersonDemo {
    private String name;
    private int age;

    public PersonDemo(){

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

    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
    public int getAge(){
        return age;
    }
    public void setAge(int age){
        this.age=age;
    }

}


 class StudentDemo extends PersonDemo{
    public StudentDemo(){

    }
    public StudentDemo(String name,int age){
        super(name,age);//调用父类的有参构造方法
    }
}


 class TeacherDemo extends PersonDemo {
    public TeacherDemo(){

    }
    public TeacherDemo(String name,int age){
        super(name,age);//调用父类的有参构造方法
    }
}




public class PersonDemoMain {

    /**
     * @param args
     */
    public static void main(String[] args) {
        System.out.println("******************学生类************************");
        //创建学生类对象
        StudentDemo sd = new StudentDemo();
        sd.setName("李春男");
        sd.setAge(25);
        System.out.println(sd.getName()+"--------"+sd.getAge());
        //第二种方式赋值
        StudentDemo sd2 = new StudentDemo("杨莉",25);
        System.out.println(sd2.getName()+"--------"+sd2.getAge());

        System.out.println("******************工人类************************");
        //创建老师类对象
        TeacherDemo td = new TeacherDemo();
        td.setName("马金金");
        td.setAge(33);
        System.out.println(td.getName()+"----------"+td.getAge());
        //第二种方式赋值
        TeacherDemo td2 = new TeacherDemo("马金金",33);
        System.out.println(td2.getName()+"----------"+td2.getAge());

    }

}