https://stackoverflow.com/questions/23608059
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Russian"So what would be the best way to randomize or shuffle the images and values set to each button"
Just use Collections.shuffle() to shuffle the array of buttons. It takes a List argument, but you can just use Arrays.toList(). After the array is shuffled, then re-layout the panel with the buttons.
See example
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Arrays;
import java.util.Collections;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class ShuffleButtons {
private JButton[] buttons;
private JPanel gridPanel;
public ShuffleButtons() {
gridPanel = new JPanel(new GridLayout(4, 4));
buttons = getButtons(16);
layoutButtons();
JFrame frame = new JFrame("Shuffle Buttons");
frame.add(gridPanel);
frame.add(getResetButton(), BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public void shuffleButtons() {
if (buttons != null) {
Collections.shuffle(Arrays.asList(buttons));
layoutButtons();
}
}
public void layoutButtons() {
gridPanel.removeAll();
for (JButton button : buttons) {
gridPanel.add(button);
}
gridPanel.revalidate();
gridPanel.repaint();
}
private JButton[] getButtons(int size) {
JButton[] buttons = new JButton[size];
for (int i = 0; i < size; i++) {
final JButton button = new JButton(" [ " + i + " ] ");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
System.out.println("Button " + button.getText() + " pressed");
}
});
buttons[i] = button;
}
return buttons;
}
private JButton getResetButton() {
JButton button = new JButton("RESET");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
shuffleButtons();
}
});
return button;
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable(){
public void run() {
new ShuffleButtons();
}
});
}
}
