Data commit

Task/Colour-pinstripe-Display/Java/colour-pinstripe-display.java

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+import java.awt.*;
+import static java.awt.Color.*;
+import javax.swing.*;
+
+public class ColourPinstripeDisplay extends JPanel {
+    final static Color[] palette = {black, red, green, blue, magenta,cyan,
+        yellow, white};
+
+    final int bands = 4;
+
+    public ColourPinstripeDisplay() {
+        setPreferredSize(new Dimension(900, 600));
+    }
+
+    @Override
+    public void paintComponent(Graphics g) {
+        super.paintComponent(g);
+        int h = getHeight();
+        for (int b = 1; b <= bands; b++) {
+            for (int x = 0, colIndex = 0; x < getWidth(); x += b, colIndex++) {
+                g.setColor(palette[colIndex % palette.length]);
+                g.fillRect(x, (b - 1) * (h / bands), x + b, b * (h / bands));
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(() -> {
+            JFrame f = new JFrame();
+            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+            f.setTitle("ColourPinstripeDisplay");
+            f.add(new ColourPinstripeDisplay(), BorderLayout.CENTER);
+            f.pack();
+            f.setLocationRelativeTo(null);
+            f.setVisible(true);
+        });
+    }
+}