import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
class TicTacToe extends JFrame implements ActionListener
{
  public String play = "X's turn.";
  public String one1 = "  ";
  public String two2 = "  ";
  public String three3 = "  ";
  public String four4 = "  ";
  public String five5 = "  ";
  public String six6 = "  ";
  public String seven7 = "  ";
  public String eight8 = "  ";
  public String nine9 = "  ";
  public boolean xTurn = true;
 
 
  JButton one = new JButton(one1);
  JButton two = new JButton(two2);
  JButton three = new JButton(three3);
  JButton four = new JButton(four4);
  JButton five = new JButton(five5);
  JButton six = new JButton(six6);
  JButton seven = new JButton(seven7);
  JButton eight = new JButton(eight8);
  JButton nine = new JButton(nine9);
  JLabel status = new JLabel(play);
 
 
 
  public TicTacToe()
  {
    super("Tic-Tac-Toe");
    setSize(200,200);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
 
    Container contentArea = getContentPane();
    GridBagLayout flowManager = new GridBagLayout();
    GridBagConstraints pos = new GridBagConstraints();
    contentArea.setLayout(flowManager);
 
    one.addActionListener(this);
    two.addActionListener(this);
    three.addActionListener(this);
    four.addActionListener(this);
    five.addActionListener(this);
    six.addActionListener(this);
    seven.addActionListener(this);
    eight.addActionListener(this);
    nine.addActionListener(this);
 
 
    pos.gridx=0; pos.gridy=0;
    contentArea.add(one,pos);
 
    pos.gridx=1; pos.gridy=0;
    contentArea.add(two,pos);
 
    pos.gridx=2; pos.gridy=0;
    contentArea.add(three,pos);
 
    pos.gridx=0; pos.gridy=1;
    contentArea.add(four,pos);
 
    pos.gridx=1; pos.gridy=1;
    contentArea.add(five,pos);
 
    pos.gridx=2; pos.gridy=1;
    contentArea.add(six,pos);
 
    pos.gridx=0; pos.gridy=2;
    contentArea.add(seven,pos);
 
    pos.gridx=1; pos.gridy=2;
    contentArea.add(eight,pos);
 
    pos.gridx=2; pos.gridy=2;
    contentArea.add(nine,pos);
 
    pos.gridx=1; pos.gridy=3;
    contentArea.add(status,pos);
 
    setContentPane(contentArea);
  }
 
 
  public void actionPerformed(ActionEvent event)
   {
 //O's Turn:
 
      if(!(xTurn) && play=="O's turn." && event.getSource()==one){
            one.setText("O");
            xTurn=true;
            status.setText("X's turn.");
          }
 
 
          else if(!(xTurn) && play=="O's turn." && event.getSource()==two){
       two.setText("O");
       xTurn=true;
       status.setText("X's turn.");
     }
 
 
 
        else if(!(xTurn) && play=="O's turn." && event.getSource()==three){
          three.setText("O");
          xTurn=true;
            status.setText("X's turn.");
            }
 
 
 
            else if(!(xTurn) && play=="O's turn." && event.getSource()==four){
         four.setText("O");
         xTurn=true;
         status.setText("X's turn.");
       }
 
 
 
       else if(!(xTurn) && play=="O's turn." && event.getSource()==five){
     five.setText("O");
     xTurn=true;
     status.setText("X's turn.");
   }
 
 
 
          else if(!(xTurn) && play=="O's turn." && event.getSource()==six){
             six.setText("O");
             xTurn=true;
      status.setText("X's turn.");
 }
 
 
 
 
    else if(!(xTurn) && play=="O's turn." && event.getSource()==seven){
 seven.setText("O");
 xTurn=true;
 status.setText("X's turn.");
 }
 
 
 
  else if(!(xTurn) && play=="O's turn." && event.getSource()==eight){
 eight.setText("O");
 xTurn=true;
 status.setText("X's turn.");
 }
 
 
       else if(!(xTurn) && play=="O's turn." && event.getSource()==nine){
    nine.setText("O");
    xTurn=true;
    status.setText("X's turn.");
  }
 
 
 
 
//X's turn
     if(xTurn && play=="X's turn." && event.getSource()==one){
       one.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==two){
       two.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==three){
       three.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==four){
       four.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==five){
       five.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==six){
       six.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==seven){
       seven.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==eight){
       eight.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
     else if(xTurn && play=="X's turn." && event.getSource()==nine){
       nine.setText("X");
       xTurn=false;
       status.setText("O's turn.");
     }
   }
 
 
  public static void main(String[] args)
  { TicTacToe eg = new TicTacToe(); }
}