Tic Tac Toe Code

[HELPME2]

Above my tic tac toe grid, I want to be able to write if it is X`s turn or O`s turn. And the name of the game `Tic Tac Toe`

import java.awt.*; 
import java.awt.event.*;
import javax.swing.*; 
import java.lang.String;
import java.awt.Font;
import java.awt.Color;

public class NewTicTacToe implements ActionListener { 
  
    private JFrame window = new JFrame("Tic-Tac-Toe"); 
    private JButton button[] = new JButton[10]; 
    private String letter = ""; 
    private boolean winner = false; 
    public int turn = 1;
    
    public NewTicTacToe(){ 
    /*Create Window*/ 
    window.setPreferredSize(new Dimension(400,400)); 
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    window.setLayout(new GridLayout(3,3));
    
    /*Add Buttons To The Window*/ 
    for(int i = 1; i<=9; i++){ 
            button[i] = new JButton(); 
            window.add(button[i]); 
            button[i].addActionListener(this); 
            button[i].setBackground(Color.BLACK); 
    } 
    /*Make The Window Visible*/ 
    window.setVisible(true); 
    window.pack(); 
    } 
    
    public void actionPerformed(ActionEvent a) { 
      
            if (turn == 1 || turn==3 || turn==5 || turn==7 || turn== 9)
            { 
               for(int i = 1; i<= 9; i++){ 
               if(a.getSource() == button[i]){ 
               button[i].setText("X"); 
               button[i].setEnabled(true); 
               button[i].setFont(new Font("Sans Serif", Font.BOLD, 75));
               button[i].setForeground(new Color(30, 144, 255));
               } 
            }
               }
            
            else
            { 
               for(int i = 1; i<= 9; i++){ 
               if(a.getSource() == button[i]){ 
               button[i].setText("O"); 
               button[i].setEnabled(true); 
               button[i].setFont(new Font("Sans Serif", Font.BOLD, 75));
               button[i].setForeground(Color.YELLOW);
             } 
            } }
      
      turn++; 
      
    //Finds out who won 
      
      if(turn % 2 == 0) 
        letter = "X"; 
      else 
        letter = "O"; 
      
    //Horizontal win 1
    if(button[1].getText()==button[2].getText() && button[2].getText() == button[3].getText() && button[3].getText()!="" )
    {
      winner=true;
      button[1].setBackground(new Color(35, 35, 35));
      button[2].setBackground(new Color(35, 35, 35));
      button[3].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    //Horizontal win 2
    else if(button[4].getText()==button[5].getText() && button[5].getText() == button[6].getText() && button[4].getText()!="" )
    {
      winner=true;
      button[4].setBackground(new Color(35, 35, 35));
      button[5].setBackground(new Color(35, 35, 35));
      button[6].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    //Horizontal win 3
    else if(button[7].getText()==button[8].getText() && button[8].getText() == button[9].getText() && button[7].getText()!="" )
    {
      winner=true;
      button[7].setBackground(new Color(35, 35, 35));
      button[8].setBackground(new Color(35, 35, 35));
      button[9].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }  
    //Vertical win 1
    else if(button[1].getText()==button[4].getText() && button[4].getText() == button[7].getText() && button[1].getText()!="" )
    {
      winner=true;
      button[1].setBackground(new Color(35, 35, 35));
      button[4].setBackground(new Color(35, 35, 35));
      button[7].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    //Vertical win 2
    else if(button[2].getText()==button[5].getText() && button[5].getText() == button[8].getText() && button[2].getText()!="" )
    {
      winner=true;
      button[2].setBackground(new Color(35, 35, 35));
      button[5].setBackground(new Color(35, 35, 35));
      button[8].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    //Vertical win 3
    else if(button[3].getText()==button[6].getText() && button[6].getText() == button[9].getText() && button[3].getText()!="" )
    {
      winner=true;
      button[3].setBackground(new Color(35, 35, 35));
      button[6].setBackground(new Color(35, 35, 35));
      button[9].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }  
    //Diagonal win 1
    else if(button[1].getText()==button[5].getText() && button[5].getText() == button[9].getText() && button[1].getText()!="" )
    {
      winner=true;
      button[1].setBackground(new Color(35, 35, 35));
      button[5].setBackground(new Color(35, 35, 35));
      button[9].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    //Diagonal win 2
    else if(button[3].getText()==button[5].getText() && button[5].getText() == button[7].getText() && button[3].getText()!="" )
    {
      winner=true;
      button[3].setBackground(new Color(35, 35, 35));
      button[5].setBackground(new Color(35, 35, 35));
      button[7].setBackground(new Color(35, 35, 35));
      JOptionPane.showMessageDialog(null, letter+ " wins!");
      System.exit(0);
    }
    else if(turn==10 && winner==false)
    { 
      JOptionPane.showMessageDialog(null, "Match is a draw");
      System.exit(0);
    }}
    
    public static void main(String[] args){ 
    new NewTicTacToe(); 

    } 
}

[Army]

Make it so it replaces the number or whatever you have on the board with X or an O. I had a Tic Tac Toe example somewhere on my computer but missplaced it. found it.

Edit this concept into your button concept. If it presses a button then switch it out with this.

switch(keyboard.next().charAt(0))
			{
			case '1':
				if(table[0][0]=='1')
				{
					table[0][0] = piece;
				}
				break;