Ich versuche, ein Programm für Java zu erstellen, und ich habe das allgemeine Problem mit dem Flackern. Ich habe versucht, viele Dinge zu beseitigen, aber trotzdem. während sich das oval, das ich male, bewegt, flackert das japplet. Ich brauche deine Hilfe, um dieses Problem zu lösen. Hier ist mein Code:

import java.awt.Color;

public class all extends JApplet implements Runnable {

    double x=0;
    double y=0;
    int m=0;
    int n=0;
    int f=30;
    int μ=0;
    Thread kinisi;
    JPanel panel;
    JFrame frame;
    private boolean running = false;
    private JTextField textField1;
    private JTextField textField2;
    Image backGround;
    JPanel panel_3;
    Image bf = createImage(m, n);
    private Graphics doubleg;
    private Image i;

    public void init() {
        this.setSize(800, 700);
    }

    public all() {
        getContentPane().setLayout(null);

        JButton btnNewButton = new JButton("Start");
        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) { 
                String b=textField2.getText();
                String z =textField1.getText();
                if (textField1.getText().equals("") || 
                    textField2.getText().equals("")){
                    JOptionPane.showMessageDialog(
                        new JFrame(),
                        "Δωστε τιμή για το φ και το μ!",
                        "ERROR",JOptionPane.ERROR_MESSAGE);
        } else{
                f = Integer.parseInt(b);
                μ = Integer.parseInt(z); 
                Start();    }
            }
        });
        btnNewButton.setBounds(469, 168, 89, 23);
        getContentPane().add(btnNewButton);

        JButton btnStop = new JButton("Pause");
        btnStop.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                pause();
            }
        });
        btnStop.setBounds(588, 168, 89, 23);
        getContentPane().add(btnStop);

        JButton btnReset = new JButton("Reset");
        btnReset.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                Reset();
            }
        });
        btnReset.setBounds(701, 168, 89, 23);
        getContentPane().add(btnReset);

        JLabel label = new JLabel("\u03BC");
        label.setHorizontalAlignment(SwingConstants.CENTER);
        label.setBounds(549, 63, 46, 14);
        getContentPane().add(label);

        textField1 = new JTextField();
        textField1.setBounds(529, 101, 86, 20);
        getContentPane().add(textField1);
        textField1.setColumns(10);

        JLabel label_1 = new JLabel("\u03C6");
        label_1.setHorizontalAlignment(SwingConstants.CENTER);
        label_1.setBounds(681, 63, 46, 14);
        getContentPane().add(label_1);

        textField2 = new JTextField();
        textField2.setBounds(667, 101, 86, 20);
        getContentPane().add(textField2);
        textField2.setColumns(10);

        JButton btnNewButton_1 = new JButton("");
        btnNewButton_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                JOptionPane.showMessageDialog(
                    new JFrame(),
                    "Οδηγίες προγράμματος","Οδηγίες",
                    JOptionPane.INFORMATION_MESSAGE);
                }
        });
        btnNewButton_1.setIcon(
            new ImageIcon(all.class.getResource("/Images/info.png")));
        btnNewButton_1.setBounds(732, 5, 39, 35);
        getContentPane().add(btnNewButton_1);

        JLabel label_2 = new JLabel("");
        label_2.setIcon(
            new ImageIcon(all.class.getResource("/Images/earth.jpg")));
        label_2.setBounds(-20, 0, 820, 361);
        getContentPane().add(label_2);

        JPanel panel_1 = new JPanel();
        panel_1.setBorder(
            new BevelBorder(BevelBorder.LOWERED, null, null, null, null));
        panel_1.setBounds(10, 372, 369, 290);
        getContentPane().add(panel_1);

        JPanel panel_2 = new JPanel();
        panel_2.setBorder(
            new BevelBorder(BevelBorder.LOWERED, null, null, null, null));
        panel_2.setBounds(408, 372, 369, 290);
        getContentPane().add(panel_2);
    }

    public void paint(Graphics g){
        super.paint(g);
        g.drawLine(0,f,350,200);
        g.drawLine(0,200,350,200);  
        g.drawOval(m,n,40,40);
        Color brown=new Color(137,66,0);
        g.setColor(brown);
        g.fillOval(m, n, 40, 40);
        //Graphics2D g2d = (Graphics2D) g;
        g.drawLine(460,400,460,650);
        g.drawLine(20, 620, 350, 620);
        g.drawLine(50,400,50,650);
        g.drawLine(430, 620, 760, 620); 
    }

    public void Start() {
        kinisi = new Thread(this);
        kinisi.start();
        running = true; 
    }

    public void run() {
        while (running) {
            if (x < 340){
                double l = 200-f;
                double k = l/350;
                double y=k*x+f-30;
                x= x+1;
                m = (int) x;
                n = (int) y;
                repaint();
                try {
                    Thread.sleep(μ);  
                } catch (InterruptedException ie) {}
            }
        }
    }

    public void update(Graphics g) {
        if(i==null){
            i=createImage(800,700);
            doubleg = i.getGraphics();
        }
        doubleg.setColor(getBackground());
        doubleg.fillRect(0,0,800,700);
        doubleg.setColor(getForeground());
        paint(doubleg);
        g.drawImage(i,0,0,this);
    }

    public void paint1(Graphics g){
        g.drawLine(0, f ,350, 200);
        g.drawOval(m, n, 40, 40);
        Color brown=new Color(137,66,0);
        g.setColor(brown);
        g.fillOval(m, n, 40, 40);
    }

    public void pause() {
        if (kinisi != null) {
            running = false;
        }
    }

    public boolean Reset() {
        if (kinisi != null) {
            running = false;
            kinisi.interrupt();
            kinisi = null;
            x=0;
            y=0;
            f=30;
            m=0;
            n=0;
            repaint();
            textField1.setText("");
            textField2.setText("");
        }
        Graphics g = getGraphics();
        g.drawOval(m,n,40,40);
        Color brown=new Color(137,66,0);
        g.setColor(brown);
        g.fillOval(m, n, 40, 40);
        return false;
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("FISIKI");
        frame.getContentPane().add(new all());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(800, 700);
        frame.setVisible(true); 
        frame.setResizable(false);
    }
}

Vielen Dank und Entschuldigung für mein Englisch sind nicht sehr gut!