A Sierpinski Triange program I made cause I was bored...

Triangle.java

import java.util.*;
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;

public class Triangle extends JPanel {
    public final JFrame frame = new JFrame("Sierpinski Triangle");
    public final int width = 500;
    public final int height = 500;

    public boolean running = false;
    public BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    public Random random = new Random();
    public long iteration = 0;

    public Point v1 = new Point(width / 2, 0);
    public Point v2 = new Point(0, height);
    public Point v3 = new Point(width, height);
    public Point p = random(v1, v2, v3);

    public static void main(String[] args) {
        new Triangle();
    }

    public Triangle() {
        image.getGraphics().setColor(Color.WHITE);
        frame.setBackground(Color.BLACK);
        frame.setSize(width, height);
        frame.setResizable(false);
        frame.add(this);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);

        new java.util.Timer().schedule(new java.util.TimerTask() {
            public void run() {
                if(!running) {
                    running = true;
                    updateImage();
                    running = false;
                }
            }
        }, 2, 2);


        new java.util.Timer().schedule(new java.util.TimerTask() {
            public void run() {
                Triangle.this.repaint();
            }
        }, 10, 10);
    }

    public void updateImage() {
        Point current = p;
        Point vertice = random(v1, v2, v3);

        final int halfx = (int)((current.x + vertice.x) / 2);
        final int halfy = (int)((current.y + vertice.y) / 2);

        Graphics g = image.getGraphics();
        g.setColor(new Color(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
        g.drawLine(halfx, halfy, halfx, halfy);

        p = new Point(halfx, halfy);

        iteration++;
    }

    public Point random(Point... points) {
        return points[random.nextInt(points.length)];
    }

    public void paintComponent(Graphics g) {
        g.setColor(Color.BLACK);
        g.fillRect(0, 0, width, 100);

        if(this.image != null) {
            g.drawImage(image, 0, 0, width, height, null);
        }

        g.setColor(Color.GREEN);
        g.drawString("Iteration: " + iteration, 10, 10);
    }
}

class Point {
    public int x = 0;
    public int y = 0;

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }
}