📁 Java Tutorial 161 - Code Viewer

// If you have a different package name // Change package name... // If you have no package name // Delete the line: // package spin; package spin; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SpinWheel extends JPanel implements ActionListener { private double angle = 0; private Timer timer; private int speed = 20; private String[] prizes = { "1 $", "12 $", "100 $", "15 $", "20 $", "25 $", "30 $", "500 $", "35 $", "40 $", "200 $", "50 $" }; public SpinWheel() { JButton spinButton = new JButton("SPIN"); spinButton.addActionListener(e -> startSpin()); this.add(spinButton); timer = new Timer(30, this); } private void startSpin() { speed = 30 + (int)(Math.random() * 20); // rastgele hız timer.start(); } @Override public void actionPerformed(ActionEvent e) { angle += speed; speed = Math.max(0, speed - 1); // yavaşlama efekti if (speed == 0) timer.stop(); repaint(); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; int w = getWidth(); int h = getHeight(); int size = Math.min(w, h) - 50; int x = (w - size) / 2; int y = (h - size) / 2; double sliceAngle = 360.0 / prizes.length; double startAngle = angle + sliceAngle / 2; // yarım dilim kaydırma ✅ for (int i = 0; i < prizes.length; i++) { g2.setColor(Color.getHSBColor((float)i / prizes.length, 0.8f, 0.9f)); g2.fillArc(x, y, size, size, (int)startAngle, (int)sliceAngle); g2.setColor(Color.BLACK); g2.drawArc(x, y, size, size, (int)startAngle, (int)sliceAngle); // yazı double theta = Math.toRadians(startAngle + sliceAngle / 2); int tx = (int)(w/2 + Math.cos(theta) * size/3); int ty = (int)(h/2 - Math.sin(theta) * size/3); g2.drawString(prizes[i], tx - 20, ty); startAngle += sliceAngle; } // Ok işareti (sabit yukarıda ortalanmış şekilde) g2.setColor(Color.BLACK); int[] px = {w/2 - 10, w/2 + 10, w/2}; int[] py = {y-5, y-5, y+20}; g2.fillPolygon(px, py, 3); } public static void main(String[] args) { JFrame frame = new JFrame("Java Blackboard 161 | Spin Wheel"); frame.setSize(800, 450); frame.setLocationRelativeTo(null); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new SpinWheel()); frame.setVisible(true); } }