currentVRain.java

import java.awt.Color;
import java.awt.Graphics;
import java.util.ArrayList;
import java.util.Random;

public class Rain extends GameObjects {

	private int yPos; // xPos, width, height;  <- useless
	Random rnd = new Random();
	ArrayList<Object> rain = new ArrayList<Object>(); // rain(y, x, y, x)
	Object[] colors = {Color.black, Color.yellow, Color.blue, Color.red, Color.orange};

	@Override
	void draw(Graphics g) {

		g.clearRect(0, 0, 500, 500);
		if (rain.size() < 20) {
			rain.add(20); 	  // this is Y
			rain.add(rnd.nextInt(500));  // this is X
		}

		for (int j = 0; j < rain.size(); j += 2) {
			g.setColor((Color)colors[rnd.nextInt(5)]);
			g.fillOval((int) rain.get(j + 1), (int) rain.get(j), 15, 15);
			rain.set(j, (int) rain.get(j) + 10);
			
			try {
				Thread.sleep(50);
			} catch (InterruptedException e) {
			}
		}

	}

	@Override
	void update() {

	}

}