import javax.swing.JOptionPane;
import java.text.NumberFormat;
public class Tic
{
    public static void main(String[] args)
    {
        TicClass t = new TicClass();
        String one = "1";   //Numbers for matrix.
        String two = "2";
        String three = "3";
        String four = "4";
        String five = "5";
        String six = "6";
        String seven = "7";
        String eight = "8";
        String nine = "9";
        int gameOver = 0;

        System.out.println("[" + one + "] [" + two + "] [" + three + "]");
        System.out.println("[" + four + "] [" + five + "] [" + six + "]");
        System.out.println("[" + seven + "] [" + eight + "] [" + nine + "]");
        System.out.println("");
        if(gameOver != 1)
        {

        for (int i = 0; i < 9; i++)             // Game Loop
        {

            String playerMove = JOptionPane.showInputDialog("Choose a square player: " + t.getPlayer());
            int choice = Integer.parseInt(playerMove);

            if(choice == 1 && one != "X"&& one != "O")          // Checks for valid moves
            {
                one = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 2 && two != "X"&& two != "O")
            {
                two = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 3 && three != "X"&& three != "O")
            {
                three = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 4 && four != "X"&& four != "O")
            {
                four = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 5 && five != "X"&& five != "O")
            {
                five = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 6 && six != "X"&& six != "O")
            {
                six = t.playerMarker();
                t.swapPlayers();
            }

            else if (choice == 7 && seven != "X"&& seven != "O")
            {
                seven = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 8 && eight != "X"&& eight != "O")
            {
                eight = t.playerMarker();
                t.swapPlayers();
            }
            else if (choice == 9 && nine != "X"&& nine != "O")
            {
                nine = t.playerMarker();
                t.swapPlayers();
            }
            else
            {
                System.out.println("Invalid Choice");
                i--;
            }

            System.out.println("[" + one + "] [" + two + "] [" + three + "]");      // Prints new board
            System.out.println("[" + four + "] [" + five + "] [" + six + "]");
            System.out.println("[" + seven + "] [" + eight + "] [" + nine + "]");
            System.out.println("");
                                                                                    // Checks for winners
            if(one == "O" && four == "O" && seven == "O")                           //Vertical rows
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(one == "X" && four == "X" && seven == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(two == "O" && five == "O" && eight == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(two == "X" && five == "X" && eight == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(three == "O" && six == "O" && nine == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(three == "X" && six == "X" && nine == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(one == "X" && two == "X" && three == "X")               //Horizontal rows
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(one == "O" && two == "O" && three == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(four == "X" && five == "X" && six == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(four == "O" && five == "O" && six == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(seven == "X" && eight == "X" && nine == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(seven == "O" && eight == "O" && nine == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }                                                                               //Diagonal rows
            else if(one == "X" && five == "X" && nine == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(one == "O" && five == "O" && nine == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(seven == "X" && five == "X" && three == "X")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
            else if(seven == "O" && five == "O" && three == "O")
            {
                gameOver = 1;
                System.out.println("Game Over!");
                System.exit(0);
            }
        }

        }
    }

}







public class TicClass
{
    private int playerTurn;
    public String playerMarker;

    public TicClass()
    {
        playerTurn = 1;
    }

    public String playerMarker() //Player assignments.
    {
        if(playerTurn == 1)
        {
            playerMarker = "X";
            return "X";
        }
        else
        {
            playerMarker = "O";
            return "O";
        }

    }

    public int getPlayer()
    {
        return playerTurn;
    }

    public void swapPlayers()
    {
        if(playerTurn == 1)
        {
            playerTurn = 2;
        }
        else
        {
            playerTurn = 1;
        }
    }
}