Generating rectangle with Timer

Question

hi,
I am trying to 'paint' a shape say a rectangle using the paintcomponent using a timer that will paint every 12 seconds
class Timerclass implements ActionListener {
        public void actionPerformed(ActionEvent e) {
           public void paintComponent(Graphics g) {
        super.paintComponent(g);                  
       g.fillRect(90,325,20,20);
    }the above doesnt work...any ideas?

Answer 1

import java.awt.Color;
import java.awt.Graphics2D;
public class vehicle {
    private static final int size = 20;
    private Color vehicleColor;
    private int Xvehicle, Yvehicle, speedVehicle;
    public vehicle(int x, int y, int velocity) {
        vehicleColor = Color.BLUE; 
        Xvehicle =  x;
        Yvehicle = y;
        speedVehicle = velocity;
    public void drive() {
        Xvehicle += speedVehicle;
    public void draw(Graphics2D g2) {
        g2.setColor(vehicleColor);
        g2.fillRect(Xvehicle, Yvehicle, size, size);
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.Timer;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class Anime extends junction  {
    private vehicle vec_1  = new vehicle(80,365, 2);
    private int   a_interval  = 35;
    private int   b_interval = 4000;
    private Timer a_timer, b_timer;
    public Anime() {
        a_timer = new Timer(a_interval, new Timer1());
       b_timer = new Timer(b_interval, new Timer2());
    public void setAnimation(boolean StartStop) {
        if (StartStop) {
            a_timer.start();
            b_timer.start();
        } else {
            a_timer.stop();
            b_timer.stop();
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
       Graphics2D g3 = (Graphics2D) g;
       vec_1.draw(g3);
    class Timer1 implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            vec_1.drive();
            repaint();
class Timer2 implements ActionListener {
        public void actionPerformed(ActionEvent e) {
             // g = (Graphics2D)this.getGraphics();
            //create new vehicle randomly...
}I tried different ideas none worked, and i am stuck on this, making new instances of vehicle class in Anime class, should i be using threads or is it not necessary?