How to fix getSource() method to edit JButton Text in actionPerformed class?

Question

I have to create a TicTacToe game in an applet for a school project in Ready to Program Java 1.42. In the actionPerformed class I would like to simply set/edit the text of the first square on the top left to "X". I have used setActionCommand() on the JButton and have called getActionCommand() in the actionPerformed class. However in my if statement, I use getSource() so I can refer to the object itself and set/edit the text. Can I not use getActionCommand() and getSource() together? Thank you.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.applet.Applet;
import javax.swing.JButton;

public class TicTacToe extends Applet implements ActionListener 
{
public void InitializeGame()
{

 setLayout(null);
 JButton Square1 = new JButton();
 Square1.setBackground(Color.white);
 Square1.setBounds(90,20,75,75);
 Square1.addActionListener(this);
 Square1.setActionCommand("s1");

 JButton Square2 = new JButton();
 Square2.setBackground(Color.white);
 Square2.setBounds(165,20,75,75);
 Square2.addActionListener(this);
 Square2.setActionCommand("s2");

 JButton Square3 = new JButton();
 Square3.setBackground(Color.white);
 Square3.setBounds(240,20,75,75);
 Square3.addActionListener(this);
 Square3.setActionCommand("s3");

 JButton Square4 = new JButton();
 Square4.setBackground(Color.white);
 Square4.setBounds(90,95,75,75);
 Square4.addActionListener(this);
 Square4.setActionCommand("s4");

 JButton Square5 = new JButton();
 Square5.setBackground(Color.white);
 Square5.setBounds(165,95,75,75);
 Square5.addActionListener(this);
 Square5.setActionCommand("s5");

 JButton Square6 = new JButton();
 Square6.setBackground(Color.white);
 Square6.setBounds(240,95,75,75);
 Square6.addActionListener(this);
 Square6.setActionCommand("s6");

 JButton Square7 = new JButton();
 Square7.setBackground(Color.white);
 Square7.setBounds(90,170,75,75);
 Square7.addActionListener(this);
 Square7.setActionCommand("s7");

 JButton Square8 = new JButton();
 Square8.setBackground(Color.white);
 Square8.setBounds(165,170,75,75);
 Square8.addActionListener(this);
 Square8.setActionCommand("s8");

 JButton Square9 = new JButton();
 Square9.setBackground(Color.white);
 Square9.setBounds(240,170,75,75);
 Square9.addActionListener(this);
 Square9.setActionCommand("s9");

 add(Square1);
 add(Square2);
 add(Square3);
 add(Square4);
 add(Square5);
 add(Square6);
 add(Square7);
 add(Square8);
 add(Square9);

}

public void init()
{
resize (400,300);
setBackground(Color.orange);

JButton Play = new JButton("Click to Play");                                 
Play.setBackground(Color.white);
Play.setForeground(Color.black);
Play.addActionListener(this);
add(Play);
}

public void actionPerformed(ActionEvent e)                         
{
removeAll();                                                       
setBackground(Color.pink);
InitializeGame();                                                   


if ( e.getActionCommand().equals( "s1" ) )
   {
   ((JButton)e.getSource()).setText("X");
   }

repaint(); 
} 

}

I expect to see "X" on the top left JButton. However the text does not appear when run.

Answer 1

Inside actionPerformed() method, you need to have removeAll(), setBackground() and InitializeGame() calls inside a if block like I have shown below:

Otherwise, the whole UI resets every time you click any button. (Because you have added this same ActionListener to all the buttons.)

public void actionPerformed(ActionEvent e)
{
  if (((JButton) e.getSource()).getText().equals("Click to Play")) {
    removeAll();
    setBackground(Color.pink);
    InitializeGame();
  }

  if ( e.getActionCommand().equals( "s1" ) )
  {
    ((JButton)e.getSource()).setText("X");
  }

  repaint();
}