Thread: Raindrop animation, almost done but the program form any of the raindrops I have programmed.

Hey everyone here is an assignment that creates raindrops every 500ms, grows them 2p every 10ms, and removes them after they have exceeded 200p. I am almost done with the program, but I can't get the drops to form. I cannot tell what is wrong with my code. Any help would be appreciated.

// Jon Katz
// Calls on drop class and draws the decal
 
 
import java.awt.event.*;
import java.awt.*;
import java.util.Random;
import java.util.ArrayList;
import javax.swing.*;
 
public class RainPanel extends JPanel implements ActionListener{
 
	// Panel dimensions
	private final int WIDTH = 500;
	private final int HEIGHT = 500;
	private int delay10ms = 10;
	private int delay500ms = 500;
 
	// Create timer and Arraylist for raindrops
	private Timer timer1;
	private Timer timer2;
	private ArrayList<Drop> raindrops;
 
	// Constructor sets up size and background
	public RainPanel() {
		this.setPreferredSize(new Dimension(WIDTH, HEIGHT));
		this.setBackground(Color.blue);
 
 
		raindrops = new ArrayList<Drop>();
 
		Timer timer1 = new Timer(delay10ms, this);
		timer1.start();
 
		Timer timer2 = new Timer(delay500ms, this);
		timer2.start();
 
	}
 
	// This method will get called whenever the timer ticks
	// Its job is to move the circle and repaint the panel
 
 
	public void actionPerformed(ActionEvent e) {
 
		// Differentiates ticks, Grow, Remove, and Add drops			
		if (e.getSource() == timer1) {
			// Grow all drops
 
			for (int i=0; i<raindrops.size(); i++) {
				raindrops.get(i).grow();
 
				// Remove large drops
				ArrayList<Drop> bigraindrops = new ArrayList<Drop>();
				if (raindrops.get(i).isTooBig() == true) {
					bigraindrops.add(raindrops.get(i));
 
			}
 
			raindrops.removeAll(bigraindrops);
 
		}
 
			repaint();
 
	}	
 
		else if (e.getSource() == timer2) {
			// Add a drop
			Random random = new Random();
			Drop drop = new Drop(random.nextInt(500), random.nextInt(500));
			raindrops.add(drop);
		}
 
		super.repaint(); // To make the changes visible
	}
 
 
		Random random = new Random();
 
		int rand = random.nextInt(100);
 
 
	// Display the panel inside a frame
	public static void main(String[] args) {
 
		JFrame frame = new JFrame("Raindrops");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
		RainPanel panel1 = new RainPanel();
 
		JPanel panel = new JPanel();
		panel.add(panel1);
		frame.getContentPane().add(panel);
 
		frame.pack();
		frame.setVisible(true);
	}
 
 
}

--- Update ---

// Jon Katz
// Drop class
 
import java.awt.*;
 
 
public class Drop {
 
 
	// Creating variables
	private int centerX;
	private int centerY;
	private int diameter = 1;
	private static Color color = Color.white;
	private static int maxDiameter = 200;
 
	// Creates raindrops
	public Drop(int x, int y) {
		centerX = x;
		centerY = y;
	}
 
	// Makes circles larger
	public void grow() {
		diameter = diameter + 2;
	}
 
	// Decides whether or not raindrop is too large
	public boolean isTooBig() {
		if (diameter > maxDiameter)
			return true;
		else
			return false;
	}
 
	// Draw on the page
	public void draw(Graphics page) {
		page.setColor(color);
		page.drawOval(centerX-(diameter/2), centerY-(diameter/2), diameter, diameter);
	}
}