We would like to know how to draw Dice.
import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Graphics; import java.util.Random; //www.ja v a 2s . co m import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.Timer; public class Main extends JFrame { Main() { setLayout(new FlowLayout()); add(new JDie()); add(new JDie()); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pack(); setVisible(true); } public static void main(String[] args) { new Main(); } } class JDie extends JPanel { private static final int SIDE = 32; private static final Random r = new Random(); private Color color; private int value = getValue(); private final Timer t = new Timer(500, null); JDie() { value = getValue(); t.addActionListener(e-> { value = getValue(); repaint(); }); t.start(); } @Override public Dimension getPreferredSize() { return new Dimension(SIDE * 7, SIDE * 7); } private int getValue() { color = Color.getHSBColor(r.nextFloat(), 1, 1); return r.nextInt(6) + 1; } @Override public void paintComponent(Graphics g) { super.paintComponent(g); g.setColor(color); switch (value) { case 1: g.fillRect(3 * SIDE, 3 * SIDE, SIDE, SIDE); break; case 2: g.fillRect(5 * SIDE, SIDE, SIDE, SIDE); g.fillRect(SIDE, 5 * SIDE, SIDE, SIDE); break; case 3: g.fillRect(5 * SIDE, SIDE, SIDE, SIDE); g.fillRect(SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(3 * SIDE, 3 * SIDE, SIDE, SIDE); break; case 4: g.fillRect(SIDE, SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, SIDE, SIDE, SIDE); g.fillRect(SIDE, 5 * SIDE, SIDE, SIDE); break; case 5: g.fillRect(SIDE, SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, SIDE, SIDE, SIDE); g.fillRect(SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(3 * SIDE, 3 * SIDE, SIDE, SIDE); break; case 6: g.fillRect(SIDE, SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, SIDE, SIDE, SIDE); g.fillRect(SIDE, 5 * SIDE, SIDE, SIDE); g.fillRect(SIDE, 3 * SIDE, SIDE, SIDE); g.fillRect(5 * SIDE, 3 * SIDE, SIDE, SIDE); break; } } }