java 如何让一组数每隔几秒变颜色一个

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class ArrayApp extends JFrame {

	public ArrayApp() {
		getContentPane().setLayout(new BorderLayout());
		JPanel panel = new MyPanel();
		getContentPane().add(panel, BorderLayout.CENTER);

		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setLocationRelativeTo(null);
		setSize(400, 300);
		setResizable(false);
		setVisible(true);

		Timer timer = new Timer();
		timer.schedule(new ShowTime(), new Date(), 1000);

	}

	class ShowTime extends TimerTask {
		public void run() {
			repaint();
		}
	}

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

}

class MyPanel extends JPanel {
	private int[] numbers = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
	private Color[] colors = { Color.red, Color.yellow, Color.black,
			Color.blue, Color.green, Color.orange };

	public MyPanel() {
		setLayout(null);
	}

	protected void paintComponent(Graphics g) {

		super.paintComponent(g);
		int x = 20;
		Font font = g.getFont();
		Font nfont = new Font(font.getName(), font.getStyle(), 20);
		for (int i = 0; i < numbers.length; i++) {
			int random = (int) (Math.random() * 100);
			random = random % colors.length;
			g.setColor(colors[random]);
			g.setFont(nfont);
			g.drawString(numbers[i] + "", x, 20);
			x += 20;
		}

	}
}