Debug this code below and make sure it is ERROR FREE & IT WORKS. DO NOT CHANGE THE ENTIRE CODE BUT DEBUG IT TO MAKE IT WORK AND MAKE SURE IT WORKS BEFORE COMPLETING IT$.$

import java.io$.$File;

import java.io$.$FileNotFoundException;

import java.io$.$PrintWriter;

import java.util.Scanner;

public class ProgThree $\{$

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

try $\{$

Scanner scanner $=$ new Scanner$($new File$("$animal$.$txt$"))$;

PrintWriter writer $=$ new PrintWriter$("$animalout$.$txt$")$;

int animalsCount $=0,$ petsCount $=0,$ zooAnimalsCount $=0$;

while $($scanner$.$hasNextLine$())\{$

String line $=$ scanner.nextLine$()$;

String$[]$ data $=$ line.split$("")$;

if $($data$.$length $==3)\{//$ Animal

int id $=$ Integer.parseInt$($data$[0])$;

String type $=$ data$[1]$;

double weight $=$ Double.parseDouble$($data$[2])$;

if $($isValidAnimal$($id$,$ type, weight$))\{$

Animal animal $=$ new Animal$($id$,$ type, weight$)$;

writer.println$($animal$)$;

animalsCount$++$;

$\}$

$\}$ else if $($data$.$length $==5)\{//$ Pet or ZooAnimal

int id $=$ Integer.parseInt$($data$[0])$;

String type $=$ data$[1]$;

double weight $=$ Double.parseDouble$($data$[2])$;

if $($id $>=3000$ && id $<=7999$ && isValidPet$($id$,$ type, weight, data$[3],$ data$[4]))\{$

Pet pet $=$ new Pet$($id$,$ type, weight, data$[3],$ data$[4])$;

writer.println$($pet$)$;

petsCount$++$;

$\}$ else if $($id $>=8000$ && id $<=9999$ && isValidZooAnimal$($id$,$ type, weight, data$[3],$ data$[4]))\{$

ZooAnimal zooAnimal $=$ new ZooAnimal$($id$,$ type, weight, Integer.parseInt$($data$[3]),$ data$[4])$;

writer.println$($zooAnimal$)$;

zooAnimalsCount$++$;

$\}$

$\}$

$\}$

writer.println$("$Total Animals: $"+$ animalsCount$)$;

writer.println$("$Total Pets: $"+$ petsCount$)$;

writer.println$("$Total Zoo Animals: $"+$ zooAnimalsCount$)$;

scanner.close$()$;

writer.close$()$;

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

e$.$printStackTrace$()$;

$\}$

$\}$

private static boolean isValidAnimal$($int id$,$ String type, double weight$)\{$

return id $>=1000$ && id $<=2999$ && type.length$()>=3$ && weight $>0$;

$\}$

private static boolean isValidPet$($int id$,$ String type, double weight, String name, String owner$)\{$

return id $>=3000$ && id $<=7999$ && type.length$()>=3$ && weight $>0$ && name.length$()>=3$ && owner.length$()>=3$;

$\}$

private static boolean isValidZooAnimal$($int id$,$ String type, double weight, String cageNumber, String trainer$)\{$

try $\{$

int cageNum $=$ Integer.parseInt$($cageNumber$)$;

return id $>=8000$ && id $<=9999$ && type.length$()>=3$ && weight $>0$ && cageNum $>0$ && trainer.length$()>=3$;

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

return false;

$\}$

$\}$

$\}$

class Animal $\{$

private int id;

private String type;

private double weight;

public Animal$($int id$,$ String type, double weight$)\{$

this.id $=$ id;

this.type $=$ type;

this.weight $=$ weight;

$\}$

@Override

public String toString$()\{$

return "Animal$\{"+$

$"$id$="+$ id $+$

$",$ type$=\text{'}"+$ type $+\text{'}\backslash \text{'}\text{'}+$

$",$ weight$="+$ weight $+$

$\text{'}\}\text{'}$;

$\}$

$\}$

class Pet extends Animal $\{$

private String name;

private String owner;

public Pet$($int id$,$ String type, double weight, String name, String owner$)\{$

super$($id$,$ type, weight$)$;

this.name $=$ name;

this.owner $=$ owner;

$\}$

@Override

public String toString$()\{$

return "Pet$\{"+$

$"$id$="+$ super.id $+$

$",$ type$=\text{'}"+$ super.type $+\text{'}\backslash \text{'}\text{'}+$

$",$ weight$="+$ super.weight $+$

$",$ name$=\text{'}"+$ name $+\text{'}\backslash \text{'}\text{'}+$

$",$ owner$=\text{'}"+$ owner $+\text{'}\backslash \text{'}\text{'}+$

$\text{'}\}\text{'}$;

$\}$

$\}$

class ZooAnimal extends Animal $\{$

private int cageNumber;

private String trainer;

public ZooAnimal$($int id$,$ String type, double weight, int cageNumber, String trainer$)\{$

super$($id$,$ type, weight$)$;

this.cageNumber $=$ cageNumber;

this.trainer $=$ trainer;

$\}$

@Override

public String toString$()\{$

return "ZooAnimal$\{"+$

$"$id$="+$ super.id $+$

$",$ type$=\text{'}"+$ super.type $+\text{'}\backslash \text{'}\text{'}+$

$",$ weight$="+$ super.weight $+$

$",$ cageNumber$="+$ cageNumber $+$

$",$ trainer$=\text{'}"+$ trainer $+\text{'}\backslash \text{'}\text{'}+$

$\text{'}\}\text{'}$;

$\}$

$\}$