drawing and filling a grid with jpanel and jlabel

import java.awt.*;

import java.util.Random;

import javax.swing.*;

public class Feedback {

private JPanel getContent() {

JPanel panel = new JPanel(new GridLayout(5,7));

Random seed = new Random();

Dimension d = new Dimension(40,40);

for(int j = 0; j < 5*7; j++) {

boolean b = seed.nextBoolean();

JPanel p = new JPanel();

p.setPreferredSize(d);

p.setBackground((b ? Color.black : Color.white));

panel.add(p);

}

// You could also do

//JOptionPane.showMessageDialog(null, panel, "",

//JOptionPane.PLAIN_MESSAGE); // -1

return panel;

}

public static void main(String[] args) {

Feedback test = new Feedback();

JFrame f = new JFrame();

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.getContentPane().add(test.getContent());

f.pack();

f.setLocationRelativeTo(null);

f.setVisible(true);

}

}

crwooda at 2007-7-12 1:29:41 >