fork download
copy 
  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. import javax.swing.SwingUtilities;  
  5. import javax.swing.JPanel;  
  6. import javax.swing.JMenuItem;  
  7. import javax.swing.JFrame;  
  8. import javax.swing.JButton;  
  9. import java.awt.Rectangle;  
  10. import javax.swing.JLabel;  
  11.  
  12.  
  13. class Main {  
  14.  
  15.     private JFrame jFrame = null;  
  16.     private JPanel jContentPane = null;  
  17.     private JButton butButton = null;  
  18.     private JLabel labLabel = null;  
  19.  
  20.  
  21.  
  22.     private JFrame getJFrame() {  
  23.         if (jFrame == null) {  
  24.             jFrame = new JFrame();  
  25.             jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
  26.  
  27.             jFrame.setSize(300, 200);  
  28.             jFrame.setContentPane(getJContentPane());  
  29.             jFrame.setTitle("Application");  
  30.         }  
  31.         return jFrame;  
  32.     }  
  33.  
  34.  
  35.     private JPanel getJContentPane() {  
  36.         if (jContentPane == null) {  
  37.             labLabel = new JLabel();  
  38.             labLabel.setBounds(new Rectangle(50, 35, 194, 58));  
  39.             labLabel.setText("");  
  40.             jContentPane = new JPanel();  
  41.             jContentPane.setLayout(null);  
  42.             jContentPane.add(getButButton(), null);  
  43.             jContentPane.add(labLabel, null);  
  44.         }  
  45.         return jContentPane;  
  46.     }  
  47.  
  48.  
  49.  
  50. //  here i start my metod  
  51.  
  52.     private JButton getButButton() {  
  53.         if (butButton == null) {  
  54.             butButton = new JButton();  
  55.             butButton.setBounds(new Rectangle(58, 110, 177, 46));  
  56.             butButton.setText("start");  
  57.             butButton.addActionListener(new java.awt.event.ActionListener() {  
  58.                 public void actionPerformed(java.awt.event.ActionEvent e) {  
  59.                     Gui gui = new Gui();  
  60.                     gui.loop();  
  61.                 }  
  62.             });  
  63.         }  
  64.         return butButton;  
  65.     }  
  66.  
  67. //  here is the metod that i cant solve to work!  
  68.  
  69.     public void loop(){  
  70.         for (int i=0;i<10;i++)  
  71.             labLabel.setText("Number: "+i);  
  72.     }  
  73.  
  74.  
  75.     public static void main (String[] args) throws java.lang.Exception {  
  76.         SwingUtilities.invokeLater(new Runnable() {  
  77.             public void run() {  
  78.                 Main application = new Main();  
  79.                 application.getJFrame().setVisible(true);  
  80.             }  
  81.         });  
  82.     }  
  83.  
  84. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
Main.java:59: error: cannot find symbol
                    Gui gui = new Gui();  
                    ^
  symbol: class Gui
Main.java:59: error: cannot find symbol
                    Gui gui = new Gui();  
                                  ^
  symbol: class Gui
2 errors
stdout
copy 
Standard output is empty
https://ideone.com/JTAYd3
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!