Как убрать мигание компонентов фрейма при его перерисовке? - Java

public class gain {
    static addit addit;
    static additional additional;
    static Happy Happy;
    static pushMe pushMe;
    
    public static void main(String[] args) {
        pushMe=new pushMe();
        pushMe.startThread();
        addit=new addit();
        addit.startThread();
        additional=new additional();
        additional.startThread();
        Happy=new Happy();
        Happy.startThread(); } }
 
class Happy extends JFrame implements Runnable {
    Image[] img=new Image[8];
    int i;
    
    Happy() {
        super();
        this.setSize(496, 450);
        this.setLayout(null);
        this.setResizable(false);
        this.setLocation(300,100);
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        this.setVisible(true); }
    
    public void startThread() {
        Thread stream1 = new Thread(this);
        stream1.start(); }
    
    public void run() {
        this.add(gain.addit);
        this.add(gain.additional);
        this.add(gain.pushMe);
        MediaTracker tr = new MediaTracker(this);
        for ( i=0; i<8; i++ )
            {img[i] = getToolkit().getImage(ResourceLoader.getImage("res/"+i+".png")); 
            tr.addImage(img[i], 0); }
        try {
            tr.waitForAll();}
        catch(InterruptedException e) {}
        i=0;
        go();}
 
    public void paint(Graphics g) {
        g.drawImage(img[i], 0, 20, this);
        gain.pushMe.repaint();
        if (addit.status==1)
            gain.addit.repaint();
        else gain.additional.repaint(); }
 
    public void update(Graphics g) {
        paint(g); } 
 
    public void go() {
        while(true) {
            while( i<8 ) {
                repaint();
                try {
                    Thread.sleep(350);
                    i++;}
                catch (InterruptedException e) {} }
            i=0;} } }
 
class addit extends JLabel implements Runnable  {
    ImageIcon ico = new ImageIcon(ResourceLoader.getImage("res/button80.png"));
    action Action= new action();
    static int status=0;
    BufferedImage buffer;
 
    public void rebuildBuffer(){
        int w = getWidth();
        int h = getHeight();
        buffer = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2d = buffer.createGraphics(); }
    
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (buffer == null) {
            rebuildBuffer(); }
        g.drawImage(buffer, 0, 0, this); }
    
    public addit() {
        super();
        this.setVisible(false);
        this.setLocation(220, 310);
        this.setSize(80, 80);
        try{
            this.setIcon(ico);
            } catch (Exception e) {} 
        this.addMouseListener(Action); }
    
    public void run() {
        this.waitBeforeStart();
        while(true) {
        this.setVisible(true);
        status=1;
        this.waitMe();
        this.setVisible(false);
        status=0;
        this.waitMe(); } }
    
    public void startThread() {
        Thread stream2 = new Thread(this);
        stream2.start(); }
    
    public void update(Graphics g) {
        paintComponent(g); } 
    
    public void waitMe() {
        try {
            Thread.sleep(1000);}
        catch (InterruptedException e) {} } 
    
    public void waitBeforeStart() {
        try {
            Thread.sleep(2000);}
        catch (InterruptedException e) {} } }