Membuat animasi di Netbeans

import java.awt.*;
import java.awt.event.*;
public class animasi extends Frame implements Runnable {
Thread animation;
int frameDelay = 200;
Image frames[];
int numFrames;
int currentFrame = 0;
long lastDisplay = 0;
int screenWidth = 400;
int screenHeight = 400;
public static void main(String args[]) {
animasi app = new animasi ();
}
public animasi () {
super("Animasi Grafik");
setup();
setSize(screenWidth,screenHeight);
addWindowListener(new WindowEventHandler());
show();
animation = new Thread(this);
animation.start();
}
void setup() {
setupMenuBar();
setFont(new Font("default",Font.BOLD,18));
Toolkit toolkit = getToolkit();
frames = new Image[5];