title: Reading text from file and putting it to the JLabel
body: <p>I want to change my JLabel when I click a JButton. It sounds simple but can't really find a good piece of code.
  Here is part of my code:</p>
  
  <pre><code>                    final JButton continueGame = new JButton();
                      continueGame.setPreferredSize(new Dimension(1000, 30)); 
                      continueGame.setLocation(95, 45);
                      continueGame.setText("&lt;html&gt;Continue&lt;/html&gt;");
                      continueGame.addActionListener(new ActionListener(){
                          @Override
                          public void actionPerformed(ActionEvent ev) {
                              panel.remove(continueGame);
                              SwingUtilities.updateComponentTreeUI(frameKontrastGame);
                                  if(RandomNrJeden &lt;= 50)
                                  {
                                      JOptionPane.showMessageDialog(frameKontrastGame, "Eggs are not supposed to be green.");
                                      frameKontrastGame.setVisible(false);
  
                                      JFrame frameScenario2 = new JFrame();
                                      frameScenario2.setTitle("Scenario2");
                                      frameScenario2.setSize(1000,700);
                                      frameScenario2.setLocationRelativeTo(null);
                                      frameScenario2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
  
                                      JPanel panelScenario = new JPanel ();
                                      panel.setLayout(new GridLayout(2, 1));
  
  
  
  
                                      final JLabel tekst = new JLabel ();
                                      tekst.setText("&lt;html&gt;Część dialogu numer 1&lt;/html&gt;");
                                      //JTextField dialog = new JTextField(20);
                                      //dialog.setText("&lt;html&gt;Eggs are not supposed to be green.&lt;/html&gt;");
  
  
                                      JButton OdpPierwsza = new JButton ();
                                      OdpPierwsza.setText("&lt;html&gt;Opowiedź pierwsza&lt;/html&gt;");
                                      OdpPierwsza.addActionListener (new ActionListener(){
                                          @Override
                                          public void actionPerformed(ActionEvent ev) {
                                          tekst.setText("&lt;html&gt;HERE I NEED A TEXT FROM FILE dialog.txt&lt;/html&gt;");
  
  
                                          }
                                          });
  
  
                                      //panelScenario.add(dialog);
                                      panelScenario.add(tekst);
                                      panelScenario.add(OdpPierwsza);
                                      frameScenario2.getContentPane().add(panelScenario);
  
                                      frameScenario2.setVisible(true);
  
                                  }
  </code></pre>
  
  <p>(If the brackets are wrong that's because its not the whole code.)</p>
  
  <p>So:</p>
  
  <ul>
  <li>Where is the "HERE I NEED A TEXT FROM FILE dialog.txt" I need some kind of reader. The best one will be the one which reads text line by line. I just cant find how to write it.</li>
  <li>I need to add the <code>JLabel</code> to the <code>JPanel</code>.</li>
  </ul>