public class LinkedList $\{$

private Node head;

private Node tail;

$//$ About method

public String About$()\{$

return "This LinkedList class was implemented by Gabriel";

$\}$

$//$ AddHead method

public void AddHead$($String value$)\{$

Node newNode $=$ new Node$($value$)$;

newNode.next $=$ head;

head $=$ newNode;

if $($tail $==$ null$)\{$

tail $=$ head;

$\}$

$\}$

$//$ AddTail method

public void AddTail$($String value$)\{$

Node newNode $=$ new Node$($value$)$;

if $($tail $==$ null$)\{$

head $=$ tail $=$ newNode;

$\}$ else $\{$

tail.next $=$ newNode;

tail $=$ newNode;

$\}$

$\}$

$//$ RemoveHead method

public String RemoveHead$()\{$

if $($head $==$ null$)\{$

return $""$;

$\}$

String value $=$ head.value;

head $=$ head.next;

if $($head $==$ null$)\{$

tail $=$ null;

$\}$

return value;

$\}$

$//$ RemoveTail method

public String RemoveTail$()\{$

if $($head $==$ null$)\{$

return $""$;

$\}$

if $($head $==$ tail$)\{$

String value $=$ head.value;

head $=$ tail $=$ null;

return value;

$\}$

Node current $=$ head;

while $($current$.$next $!=$ tail$)\{$

current $=$ current.next;

$\}$

String value $=$ tail.value;

tail $=$ current;

tail.next $=$ null;

return value;

$\}$

$//$ IsEmpty method

public boolean IsEmpty$()\{$

return head $==$ null;

$\}$

$//$ ToString method

public String ToString$()\{$

if $($head $==$ null$)\{$

return $""$;

$\}$

StringBuilder sb $=$ new StringBuilder$()$;

Node current $=$ head;

while $($current $!=$ null$)\{$

sb$.$append$($current$.$value$)$;

if $($current$.$next $!=$ null$)\{$

sb$.$append$(",")$;

$\}$

current $=$ current.next;

$\}$

return sb$.$toString$()$;

$\}$

$//$ ToStringReverse method

public String ToStringReverse$()\{$

if $($head $==$ null$)\{$

return $""$;

$\}$

StringBuilder sb $=$ new StringBuilder$()$;

Node current $=$ tail;

while $($current $!=$ null$)\{$

sb$.$append$($current$.$value$)$;

if $($current $!=$ head$)\{$

sb$.$append$(",")$;

$\}$

current $=$ current.prev;

$\}$

return sb$.$toString$()$;

$\}$

$//$ Node class

private class Node $\{$

private String value;

private Node next;

private Node prev; $//$ for ToStringReverse

public Node$($String value$)\{$

this.value $=$ value;

$\}$

$\}$

$\}$

In java programming, can you add a code in main class on how to read a file under LinkedList programming, and please do not put it inside the LinkedList class. Different programming languages implement file IO in different ways. Some use classes and others use more primitive $($or

ingrained$)$ features. This will take the form of either a While Loop or a Do Loop. In all cases, your main testing class will read

the contents of the file and it to a instance of your linked$-$list class.