Thread: Changing text on JButton

Hi everyone.

At the moment I am trying to learn myself Java, and I am doing better and better lucky.
There is however one thing I don't understand about JButtons.
I tried searching the forums, but I couldn't find it, so I hope somebody here can help me.

I am making a game called Tic Tac Toe, in Dutch it is: Boter, Kaas & Eieren.
Now I am trying to make a game for a Human against a Computer.
nd to try some things out, I use 2 pictures and not X or O.

This is my code so far:

// Import 
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import javax.swing.ImageIcon;
import javax.swing.JButton; 
import javax.swing.JFrame;
 
public class BoterKaasEieren extends JFrame implements ActionListener {
 
	// Load pictures 
	ImageIcon playerPicture = new ImageIcon("assassinsCreed.jpg");
	ImageIcon computerPicture = new ImageIcon("princeOfPersia.jpg");
 
	// Create Integers. 
	static int turn = 0;
 
	// Create JButtons 
	JButton button1 = new JButton("Knop1");
	JButton button2 = new JButton("Knop2");
	JButton button3 = new JButton("Knop3");
	JButton button4 = new JButton("Knop4");
	JButton button5 = new JButton("Knop5");
	JButton button6 = new JButton("Knop6");
	JButton button7 = new JButton("Knop7");
	JButton button8 = new JButton("Knop8");
	JButton button9 = new JButton("Knop9");
 
	/**
	 * BoterKaasEieren() 
	 * Make a frame with buttons. 
	 */
 
	public BoterKaasEieren(){
		// 3 rows, 3 columns 
		setLayout(new GridLayout(3,3));
 
		// Add JButtons and JLabels to GUI 
		add(button1);
		add(button2);
		add(button3);
		add(button4);
		add(button5);
		add(button6);
		add(button7);
		add(button8);
		add(button9);
	}
 
	/**
	 * actionPerformed()
	 * When a button is pushed, perform an action. 
	 */
 
	public void actionPerformed(ActionEvent e) { 
		// Button 1 
		if (e.getSource() == button1) {
			button1.setIcon(playerPicture);
		}
		// Button 2
		else if (e.getSource() == button2) {
			//
		}
		else if (e.getSource() == button3) {
			//
		}
		else if (e.getSource() == button4) {
			//
		}
		else if (e.getSource() == button5) {
			//
		}
		else if (e.getSource() == button6) {
			//
		}
		else if (e.getSource() == button7) {
			//
		}
		else if (e.getSource() == button8) {
			//
		}
		else if (e.getSource() == button9) {
			//
		}
		else {
			System.out.println("Button not regocnized!");
		}
	}
 
	/**
	 * randomNumber() 
	 * Generate a Random number between certain numbers. 
	 * In this case, between 0 and 8. 
	 */
 
	public static void randomNumber() {
		Random rand = new Random();
		int n = rand.nextInt(9);
		System.out.println(n);
	}
 
	/**
	 * order() 
	 * Looks who's turn it is. 
	 */
 
	public static void order() {
		//
		if (turn % 2 == 0) {
			System.out.println("Player");
		}
		else {
			System.out.println("Computer");
		}
		// 
		turn = turn +1;
	}
 
	/**
	 * main() 
	 * 
	 */
 
	public static void main(String[] args) {
		// Define the frame itself. 
		BoterKaasEieren frame = new BoterKaasEieren();
		frame.setTitle("Boter, Kaas & Eieren - versie 1.0");
		frame.setSize(500, 500);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
 
		// run subclasses 
		//
 
		/**
		int g = 0;
		int c = 10;
		while (g < c){ 
			order();
			g = g + 1;
		}
		*/
 
	}
}

Only problem I have is that if a button is pushed (button1), then the image doesn't get shown on the game.
I know the image works, and I think the word "Knop1" is more dominant all the time.

But how do I change this?

--- Update ---

I figured it out already. :p

I changed something:

// Add JButtons and JLabels to GUI 
		add(button1);
		button1.addActionListener(this);

And now the picture does go on the button.
I just need to clear the text from the button as well, but I will find that one out. :p