Define an abstract class Staff with protected members id and name. Define a parameterized constructor. Define one subclass OfficeStaff with member department. Create n objects of OfficeStaff and display all details.

 

import java.io.*;

import java.util.*;

abstract class Staff

{

      String name;

      int id;

}

class OfficeStaff extends Staff

{

      String dept;

     

      public void accept() throws IOException

      {

           Scanner sc =new Scanner(System.in);

           System.out.println("Enter name, id and department :");

           name=sc.nextLine();

           id=sc.nextInt();

           dept=sc.next();

      }

     

      public void display() throws IOException

      {

           System.out.println("Name : "+name);

           System.out.println("id : "+id);

           System.out.println("Department : "+dept);

           System.out.println("-------------------------------------");

      }

}

public class Main

{

      public static void main(String [] args) throws IOException

      {

           int i;

           Scanner s=new Scanner(System.in);

           System.out.println("Enter no. of Office Staff : ");

           int n=s.nextInt();

           OfficeStaff[] l=new OfficeStaff[n];

           

           for (i=0; i<n; i++)

           {

                l[i]=new OfficeStaff();

                l[i].accept();

           }

           

           for (i=0; i<n; i++)

           {

               l[i].display();

           }

      }

}