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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
 
import javax.swing.JFrame;
import javax.swing.JPanel;
 
final public class Test
{
 
    JFrame frame;
    DrawPanel drawPanel;
 
    private int oneX = 7;
    private int oneY = 7;
 
    boolean up = false;
    boolean down = true;
    boolean left = false;
    boolean right = true;
 
    public static void main(String... args)
    {
        new Test().go();
    }
 
    private void go()
    {
        frame = new JFrame("Test");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        drawPanel = new DrawPanel();
 
        frame.getContentPane().add(BorderLayout.CENTER, drawPanel);
 
        frame.setResizable(false);
        frame.setSize(300, 300);
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
        moveIt();
    }
 
    class DrawPanel extends JPanel
    {
        private static final long serialVersionUID = 1L;
 
        public void paintComponent(Graphics g)
        {
            g.setColor(Color.BLUE);
            g.fillRect(0, 0, this.getWidth(), this.getHeight());
            g.setColor(Color.RED);
            g.fillRect(3, 3, this.getWidth() - 6, this.getHeight() - 6);
            g.setColor(Color.WHITE);
            g.fillRect(6, 6, this.getWidth() - 12, this.getHeight() - 12);
            g.setColor(Color.BLACK);
            g.fillRect(oneX, oneY, 6, 6);
        }
    }
 
    private void moveIt()
    {
        while (true)
        {
            if (oneX >= 283)
            {
                right = false;
                left = true;
            }
            if (oneX <= 7)
            {
                right = true;
                left = false;
            }
            if (oneY >= 259)
            {
                up = true;
                down = false;
            }
            if (oneY <= 7)
            {
                up = false;
                down = true;
            }
            if (up) oneY--;
            if (down) oneY++;
            if (left) oneX--;
            if (right) oneX++;
            try
            {
                Thread.sleep(10);
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
            frame.repaint();
        }
    }
}
    private JButton butButton = null;  
    private JLabel labLabel = null;  
 
 
 
    private JFrame getJFrame() {  
        if (jFrame == null) {  
            jFrame = new JFrame();  
            jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
 
            jFrame.setSize(300, 200);  
            jFrame.setContentPane(getJContentPane());  
            jFrame.setTitle("Application");  
        }  
        return jFrame;  
    }  
 
 
    private JPanel getJContentPane() {  
        if (jContentPane == null) {  
            labLabel = new JLabel();  
            labLabel.setBounds(new Rectangle(50, 35, 194, 58));  
            labLabel.setText("");  
            jContentPane = new JPanel();  
            jContentPane.setLayout(null);  
            jContentPane.add(getButButton(), null);  
            jContentPane.add(labLabel, null);  
        }  
        return jContentPane;  
    }  
 
 
 
//  here i start my metod  
 
    private JButton getButButton() {  
        if (butButton == null) {  
            butButton = new JButton();  
            butButton.setBounds(new Rectangle(58, 110, 177, 46));  
            butButton.setText("start");  
            butButton.addActionListener(new java.awt.event.ActionListener() {  
                public void actionPerformed(java.awt.event.ActionEvent e) {  
                    Gui gui = new Gui();  
                    gui.loop();  
                }  
            });  
        }  
        return butButton;  
    }  
 
//  here is the metod that i cant solve to work!  
 
    public void loop(){  
        for (int i=0;i<10;i++)  
            labLabel.setText("Number: "+i);  
    }  
 
 
    public static void main (String[] args) throws java.lang.Exception {  
        SwingUtilities.invokeLater(new Runnable() {  
            public void run() {  
                Main application = new Main();  
                application.getJFrame().setVisible(true);  
            }  
        });  
    }  
 
}  

Main.java:100: error: class, interface, or enum expected
    private JButton butButton = null;  
            ^
Main.java:101: error: class, interface, or enum expected
    private JLabel labLabel = null;  
            ^
Main.java:105: error: class, interface, or enum expected
    private JFrame getJFrame() {  
            ^
Main.java:108: error: class, interface, or enum expected
            jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
            ^
Main.java:110: error: class, interface, or enum expected
            jFrame.setSize(300, 200);  
            ^
Main.java:111: error: class, interface, or enum expected
            jFrame.setContentPane(getJContentPane());  
            ^
Main.java:112: error: class, interface, or enum expected
            jFrame.setTitle("Application");  
            ^
Main.java:113: error: class, interface, or enum expected
        }  
        ^
Main.java:115: error: class, interface, or enum expected
    }  
    ^
Main.java:121: error: class, interface, or enum expected
            labLabel.setBounds(new Rectangle(50, 35, 194, 58));  
            ^
Main.java:122: error: class, interface, or enum expected
            labLabel.setText("");  
            ^
Main.java:123: error: class, interface, or enum expected
            jContentPane = new JPanel();  
            ^
Main.java:124: error: class, interface, or enum expected
            jContentPane.setLayout(null);  
            ^
Main.java:125: error: class, interface, or enum expected
            jContentPane.add(getButButton(), null);  
            ^
Main.java:126: error: class, interface, or enum expected
            jContentPane.add(labLabel, null);  
            ^
Main.java:127: error: class, interface, or enum expected
        }  
        ^
Main.java:129: error: class, interface, or enum expected
    }  
    ^
Main.java:138: error: class, interface, or enum expected
            butButton.setBounds(new Rectangle(58, 110, 177, 46));  
            ^
Main.java:139: error: class, interface, or enum expected
            butButton.setText("start");  
            ^
Main.java:140: error: class, interface, or enum expected
            butButton.addActionListener(new java.awt.event.ActionListener() {  
            ^
Main.java:141: error: class, interface, or enum expected
                public void actionPerformed(java.awt.event.ActionEvent e) {  
                       ^
Main.java:143: error: class, interface, or enum expected
                    gui.loop();  
                    ^
Main.java:144: error: class, interface, or enum expected
                }  
                ^
Main.java:146: error: class, interface, or enum expected
        }  
        ^
Main.java:148: error: class, interface, or enum expected
    }  
    ^
Main.java:152: error: class, interface, or enum expected
    public void loop(){  
           ^
Main.java:153: error: class, interface, or enum expected
        for (int i=0;i<10;i++)  
                     ^
Main.java:153: error: class, interface, or enum expected
        for (int i=0;i<10;i++)  
                          ^
Main.java:155: error: class, interface, or enum expected
    }  
    ^
Main.java:158: error: class, interface, or enum expected
    public static void main (String[] args) throws java.lang.Exception {  
                  ^
Main.java:160: error: class, interface, or enum expected
            public void run() {  
                   ^
Main.java:162: error: class, interface, or enum expected
                application.getJFrame().setVisible(true);  
                ^
Main.java:163: error: class, interface, or enum expected
            }  
            ^
Main.java:165: error: class, interface, or enum expected
    }  
    ^
34 errors

Standard output is empty