currently, I am trying to figure out what is wrong with my java code. What is wrong with my java code? import java.util.Arrays;

import java.util.Scanner;

import java.util.stream.IntStream;

import java.io$.$File;

$/**$ Student data that will be used to show specific values $*/$

public class StudentTest $\{$private Student$[]$ students;public static void main$($String$[]$ args$)\{$

StudentTest test $=$ new StudentTest$()$;

test.readInput$()$;

test.sortbyID$()$;

test.writeOutput$()$;$\}$

$/**$ Reading file$($input$.$txt$)*/$

public void readInput$()\{$

try $($Scanner input $=$ new Scanner$($

System.in$))\{$String filename $=$ input.next$()$;

$\}$

Scanner fileIn;

try $\{$

fileIn $=$ new Scanner$($new File$("$input$.$txt$"))$;

int n $=$ fileIn.nextInt$()$;

for $($int i $=0$; i System.out.println$("$Lowest Score: $"+$ lowestScoreName $+"("+$ lowestScore $+")")$;

$//$ Sort students by average score in descending order $\{$ double avg$2=$ Arrays.stream$($s$2.$testScores$).$average$().$orElse$(0)$; System.out.println$("$Students average sorted from highest to lowest:"$)$; double average $=$ Arrays.stream$($student$.$testscores$).$average$().$orElse$(0)$; System.out.println$($student$.$name $+""+$ average$)$;$\}$

$\}$ private void sortbyID$()\{$ System.out.println$("$Student Data sorted by ID:$")$; System.out.println$($student$.$id $+""+$ student.name $+""+$ Arrays.toString$($student$.$testscores$))$;$\}//$ Student with the highest average score String highestAverageName $=""$; for $($Student student : students$)\{$ if $($average $>$ highestAverage$)\{$ highestAverageName $=$ student.name; $\}//$ Highest and Lowest individual scores with student names int lowestScore $=$ Integer.MAX$\_$VALUE; String lowestScoreName $=""$; for $($Student score : students$)\{$ highestScore $=$ score; $\}$ lowestScore $=$ score; $\}$ import java.util.Arrays;

import java.util.Scanner;

import java.util.stream.IntStream;

import java.io$.$File;

$/**$ Student d

import java.io$.$FileNotFoundException;

import java.util.Arrays;

import java.util.Scanner;

import java.util.stream.IntStream;

import java.io$.$File;

$/**$ Student data that will be used to show specific values $*/$

public class StudentTest $\{$

private int numStudents;

private Student$[]$ students;

private int numTests $=4$;

public static void main$($String$[]$ args$)\{$

StudentTest test $=$ new StudentTest$()$;

test.readInput$()$;

test.sortbyID$()$;

test.writeOutput$()$;

$\}$

$/**$ Reading file$($input$.$txt$)*/$

public void readInput$()\{$

try $($Scanner input $=$ new Scanner$($System$.$in$))\{$

System.out.print$("$Enter input file name: $")$;

String filename $=$ input.next$()$;

$\}$

Scanner fileIn;

try $\{$

fileIn $=$ new Scanner$($new File$("$input$.$txt$"))$;

int n $=$ fileIn.nextInt$()$;

for $($int i $=0$; i $$ n; i$++)\{$

int id $=$ fileIn.nextInt$()$;

String name $=$ fileIn.next$()$;

System.out.println$($id $+""+$ name$)$;

$\}$

$\}$ catch $($FileNotFoundException e$)\{$

System.err.println$("$File not found: $"+$ "input.txt$")$;

e$.$printStackTrace$()$;

$\}$

$\}$

$//$ Sort students by ID

private void sortbyID$()\{$

students.sortbyID$($Comparator$.$comparingInt$($student $->$ student.id$))$;

System.out.println$("$Student Data sorted by ID:$")$;

for $($Student student : students$)\{$

System.out.println$($student$.$id $+""+$ student.name $+""+$ Arrays.toString$($student$.$testscores$))$;

$\}$

$\}$

private int writeOutput$()\{$

$//$ Student with the highest average score

double highestAverage $=0$;

String highestAverageName $=""$;

$\{$

for $($Student student : students$)\{$

double average $=$ Arrays.stream$($student$.$name, highestAverageName$).$average$().$orElse$(0)$;

if $($average $>$ highestAverage$)\{$

highestAverage $=$ average;

highestAverageName $=$ student.name;

$\}$

$\}$

System.out.println$("$Highest Average: $"+$ highestAverageName$)$;

$//$ Highest and Lowest individual scores with student names

int highestScore $=$ Integer.MIN$\_$VALUE;

int lowestScore $=$ Integer.MAX$\_$VALUE;

String highestScoreName $=""$;

String lowestScoreName $=""$;

for $($Student student : students$)\{$

for $($Student score : students$)\{$

if $($score $>$ student.highestScore$)\{$

highestScore $=$ score;

highestScoreName $=$ student.name;

$\}$

if $($score $$ student.lowestScore$)\{$

lowestScore $=$ score;

lowestScoreName $=$ student.name;

$\}$

$\}$

$\}$

System.out.println$("$Highest Score: $"+$ highestScoreName $+"("+$ highestScore $+")")$;

System.out.println$("$Lowest Score: $"+$ lowestScoreName $+"("+$ lowestScore $+")")$;

$//$ Sort students by average score in descending order

students.sort$($s$1,$ s$2)$;

$\{$

double avg$1=$ Arrays.stream$($s$1.$testScores$).$average$().$orElse$(0)$;

double avg$2=$ Arrays.stream$($s$2.$testScores$).$average$().$orElse$(0)$;

return Double.compare$($avg$2,$ avg$1)$;

System.out.println$("$Students average sorted from highest to lowest:"$)$;

for $($Student student : students$)\{$

double average $=$ Arrays.stream$($student$.$testscores$).$average$().$orElse$(0)$;

System.out.println$("$Lowest Score: $"+$ lowestScoreName....