package fall2017;

/**
 *
 * @author sajib
 */
public class Person {
int age;

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



}



package fall2017;

/**
 *
 * @author sajib
 */
public interface ClassRoom {

    public void teaching();
    public void reading();
    public void testing();
}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package fall2017;

/**
 *
 * @author sajib
 */
public class Student extends Person implements ClassRoom{

   String id;
   float gpa;

    public Student(String id, float gpa)
    {
        super(18);
        this.id = id;
        this.gpa = gpa;
    }

    public float getGpa() {
        return gpa;
    }

    public void teaching() {
        System.out.println("Learn from teacher");
    }


    public void reading() {
        System.out.println("read from book");
    }


    public void testing() {
        System.out.println("testing yourself");
    }

}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package fall2017;

/**
 *
 * @author sajib
 */
public class Teacher extends Person implements ClassRoom {
    String title;

    public Teacher(String title) {
        super(25);
        this.title = title;

    }

    public void teaching() {
        System.out.println("teaching");
    }


    public void reading() {
        System.out.println("reading");
    }


    public void testing() {
        System.out.println("testing student");
    }
}

package fall2017;

/**
 *
 * @author sajib
 */
public class Main {
    public static void main(String[] args)
    {
        Student obj=new Student("181-15-10874",4);
        Teacher obj1=new Teacher("Fakar jaman");
        System.out.println("Student");
        System.out.println("age :"+obj.age+"\nID :"+obj.id+"\ngpa"+obj.gpa);
        obj.teaching();
        obj.reading();
         obj.testing();
         System.out.println("Teacher");
         System.out.println("age :"+obj1.age+"\nTitle :"+obj1.title);
         obj1.teaching();
        obj1.reading();
         obj1.testing();

    }
}