import java.util.*;
import java.lang.*;
 
import javax.swing.SwingUtilities;  
import javax.swing.JPanel;  
import javax.swing.JMenuItem;  
import javax.swing.JFrame;  
import javax.swing.JButton;  
import java.awt.Rectangle;  
import javax.swing.JLabel;  
 
 
class Main {  
 
    private JFrame jFrame = null;  
    private JPanel jContentPane = null;  
    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) {  
 
                }  
            });  
        }  
        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);  
            }  
        });  
    }  
 
}  

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