I need a undergrad class, graduate class, staff class, and faculty class for the main method program below

use input files for the classes which should look like the ones below

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main method

package H9;

import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Collections; import java.util.Scanner;

public class H9 {

public static void main(String[] args) { /******************************* * UNDERGRADUATES * ***************************/ File inFile = new File("undergrad.in"); Scanner fileInput = null; try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList myList = new ArrayList(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); int lev=fileInput.nextInt(); String name=fileInput.nextLine(); Undergraduate s=new Undergraduate(name, id, lev); myList.add(s); } //sort the arrayList Collections.sort(myList); //Output the sorted list System.out.println("*************************************"); System.out.println("The undergrads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i { myList.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * GRADUATES * ***************************/ inFile = new File("graduate.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList myList2 = new ArrayList(); //input into the ArrayList while(fileInput.hasNext()) { int id=fileInput.nextInt(); String lev=fileInput.next(); String thesis=fileInput.next(); boolean t; if(thesis.equals("yes")) t=true; else t=false; String name=fileInput.nextLine(); Graduate s=new Graduate(name, id, lev, t); myList2.add(s); } //sort the arrayList Collections.sort(myList2); //Output the sorted list System.out.println("*************************************"); System.out.println("The grads sorted according to ID"); System.out.println("*************************************"); for(int i=0; i { myList2.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * Faculty * ***************************/ inFile = new File("faculty.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList myList3 = new ArrayList(); //input into the ArrayList while(fileInput.hasNext()) { double salary =fileInput.nextDouble(); int year=fileInput.nextInt(); int ID = fileInput.nextInt(); String dept=fileInput.next(); String title=fileInput.next(); String name=fileInput.nextLine(); Faculty s=new Faculty(title, name, salary, year,ID, dept); myList3.add(s); } //sort the arrayList Collections.sort(myList3); //Output the sorted list System.out.println("*************************************"); System.out.println("The faculty sorted according to department"); System.out.println("*************************************"); for(int i=0; i { myList3.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); /******************************* * Staff * ***************************/ inFile = new File("staff.in"); try { fileInput = new Scanner(inFile); } catch (FileNotFoundException ex) { //Logger.getLogger(Lab10.class.getName()).log(Level.SEVERE, null, ex); } //create an arrayList ArrayList myList4 = new ArrayList(); //input into the ArrayList while(fileInput.hasNext()) { double salary =fileInput.nextDouble(); int year=fileInput.nextInt(); int ID = fileInput.nextInt(); String dept=fileInput.next(); int PG=fileInput.nextInt(); String name=fileInput.nextLine(); Staff s=new Staff(PG, name, salary, year,ID, dept); myList4.add(s); } //sort the arrayList Collections.sort(myList4); //Output the sorted list System.out.println("*************************************"); System.out.println("The staff sorted according to salary"); System.out.println("*************************************"); for(int i=0; i { myList4.get(i).writeOutput(); System.out.println(); } //close the input file fileInput.close(); } }