Write a complete working program(Java) that draws a hexagon in the middle of the

Question

Write a complete working program(Java) that draws a hexagon in the middle of the frame. When the user clicks on a hexagon, it then replaces it with 4 smaller hexagons, each of which is a quarter of the size of the original hexagon and has a random color. If user stops clicking (i.e., remains inactive for 15 seconds), all hexagons should start moving in random directions (any speed is fine, overlaps are fine but not preferred). If user presses 'ESC', the frame is cleared and you start all over again. Test your program to draw unique patterns.

Explanation / Answer

package com.ggl.testing;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Polygon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class LinesDrawingExample extends JFrame {
private static final long serialVersionUID = 3775690273871048733L;
private DrawingPanel drawingPanel;
public LinesDrawingExample() {
super("Lines Drawing Demo");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Hexagon hexagon = new Hexagon(new Point(250, 250), 200);
drawingPanel = new DrawingPanel(hexagon);
add(drawingPanel);
pack();
setLocationByPlatform(true);
setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new LinesDrawingExample();
}
});
}
public class DrawingPanel extends JPanel {
private static final long serialVersionUID = 5701311351092275287L;
private Hexagon hexagon;
public DrawingPanel(Hexagon hexagon) {
this.hexagon = hexagon;
this.setPreferredSize(new Dimension(500, 500));
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(Color.RED);
g.drawPolygon(hexagon.getHexagon());
}
}
public class Hexagon {
private final int radius;
private final Point center;
private final Polygon hexagon;
public Hexagon(Point center, int radius) {
this.center = center;
this.radius = radius;
this.hexagon = createHexagon();
}
private Polygon createHexagon() {
Polygon polygon = new Polygon();
for (int i = 0; i < 6; i++) {
int xval = (int) (center.x + radius
* Math.cos(i * 2 * Math.PI / 6D));
int yval = (int) (center.y + radius
* Math.sin(i * 2 * Math.PI / 6D));
polygon.addPoint(xval, yval);
}
return polygon;
}
public int getRadius() {
return radius;
}
public Point getCenter() {
return center;
}
public Polygon getHexagon() {
return hexagon;
}

}
}

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