Please help me fix my java code for a tic tac toe game:

import java.util.Scanner;

$//$ Enum to represent cell values

enum CellValue $\{$

X$,$ O$,$ Empty

$\}$

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

class TicTacToe $\{$

private CellValue$[][]$ gameBoard; $//3$x$3$ game board

private CellValue currentPlayer; $//$ current player $($X or O$)$

private boolean isEmpty; $//$ flag to track if there are empty cells left

$\}$

$//$ Constructor

public TicTacToe$()\{$

gameBoard $=$ new CellValue$[3][3]$;

clearGameBoard$()$;

currentPlayer $=$ CellValue.X; $//$ X starts the game

isEmpty $=$ true;

$\}$

$//$ Method to clear the game board

public void clearGameBoard$()\{$

for $($int i $=0$; i $<3$; i$++)\{$

for $($int j $=0$; j $<3$; j$++)\{$

gameBoard$[$i$][$j$]=$ CellValue.Empty;

$\}$

$\}$

$\}$

$//$ Method to set cell value based on current player

public void setCellValue$($int row, int col$)\{$

if $($row $<0||$ row $>=3||$ col $<0||$ col $>=3)\{$

System.out.println$("$Invalid coordinates. Please enter values between $1$ and $3.")$;

return;

$\}$

if $($gameBoard$[$row$][$col$]!=$ CellValue.Empty$)\{$

System.out.println$("$Position already occupied. Please enter new coordinates."$)$;

return;

$\}$

gameBoard$[$row$][$col$]=$ currentPlayer;

$//$ Switch player

currentPlayer $=($currentPlayer $==$ CellValue.X$)?$ CellValue.O : CellValue.X;

$\}$

$//$ Method to check if the game is won by the specified player

public boolean isWin$($CellValue player$)\{$

$//$ Check rows

for $($int i $=0$; i $<3$; i$++)\{$

if $($gameBoard$[$i$][0]==$ player && gameBoard$[$i$][1]==$ player && gameBoard$[$i$][2]==$ player$)$

return true;

$\}$

$//$ Check columns

for $($int j $=0$; j $<3$; j$++)\{$

if $($gameBoard$[0][$j$]==$ player && gameBoard$[1][$j$]==$ player && gameBoard$[2][$j$]==$ player$)$

return true;

$\}$

$//$ Check diagonals

if $(($gameBoard$[0][0]==$ player && gameBoard$[1][1]==$ player && gameBoard$[2][2]==$ player$)||$

$($gameBoard$[0][2]==$ player && gameBoard$[1][1]==$ player && gameBoard$[2][0]==$ player$))\{$

return true;

$\}$

$//$ Method to check if the game board is full

private boolean isBoardFull$()\{$

for $($int i $=0$; i $<3$; i$++)\{$

for $($int j $=0$; j $<3$; j$++)\{$

if $($gameBoard$[$i$][$j$]==$ CellValue.Empty$)\{$

return false;

$\}$

$\}$

$\}$

return true;

$\}$

$//$ Method to display the winner or tie

public void displayWinner$()\{$

if $($isWin$($CellValue$.$X$))\{$

System.out.println$("$Player X wins!"$)$;

$\}$ else if $($isWin$($CellValue$.$O$))\{$

System.out.println$("$Player O wins!"$)$;

$\}$ else if $(!$isEmpty$)\{$

System.out.println$("$It$\text{'}$s a tie!"$)$;

$\}$

$\}$

$//$ Method to display the game board

public String toString$()\{$

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

for $($int i $=0$; i $<3$; i$++)\{$

for $($int j $=0$; j $<3$; j$++)\{$

if $($gameBoard$[$i$][$j$]==$ CellValue.Empty$)\{$

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

$\}$ else $\{$

sb$.$append$($gameBoard$[$i$][$j$]).$append$("")$;

$\}$

$\}$

sb$.$append$("$

$")$;

$\}$

return sb$.$toString$()$;

$\}$

$//$ Method to start the game

public void startGame$()\{$

Scanner scanner $=$ new Scanner$($System$.$in$)$;

while $($isEmpty && $(!$isWin$($CellValue$.$X$)$ && $!$isWin$($CellValue$.$O$)))\{$

System.out.println$("$Current board:"$)$;

System.out.println$($this$)$;

System.out.println$("$Player $"+$ currentPlayer $+",$ enter row $(1-3)$ and column $(1-3)$: $")$;

int row $=$ scanner.nextInt$()-1$; $//$ Adjusting for $0-$based indexing

int col $=$ scanner.nextInt$()-1$; $//$ Adjusting for $0-$based indexing

setCellValue$($row$,$ col$)$;

isEmpty $=!$isBoardFull$()$;

$\}$

System.out.println$("$Final board:"$)$;

System.out.println$($this$)$;

displayWinner$()$;

scanner.close$()$;

$\}$

$\}$

public class Main $\{$

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

TicTacToe game $=$ new TicTacToe$()$;

game.startGame$()$;

$\}$

$\}$