title: error when trying to load file information java.lang.NullPointerException
body: <p>NetBeans are sending error messages when ever i try to read the file after selecting the file from hard disk using JFileChooser the error message i get this messages but and the file are not loading in the JTable</p>
  
  <pre><code>Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
  at AnimeAid.GuiInterface.createModel(GuiInterface.java:252)
  at AnimeAid.GuiInterface.access$100(GuiInterface.java:34)
  at AnimeAid.GuiInterface$2.actionPerformed(GuiInterface.java:144)
  at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
  at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
  at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
  at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
  at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
  at java.awt.Component.processMouseEvent(Component.java:6505)
  at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
  at java.awt.Component.processEvent(Component.java:6270)
  at java.awt.Container.processEvent(Container.java:2229)
  at java.awt.Component.dispatchEventImpl(Component.java:4861)
  at java.awt.Container.dispatchEventImpl(Container.java:2287)
  at java.awt.Component.dispatchEvent(Component.java:4687)
  at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
  at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
  at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
  at java.awt.Container.dispatchEventImpl(Container.java:2273)
  at java.awt.Window.dispatchEventImpl(Window.java:2719)
  at java.awt.Component.dispatchEvent(Component.java:4687)
  at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
  at java.awt.EventQueue.access$200(EventQueue.java:103)
  at java.awt.EventQueue$3.run(EventQueue.java:694)
  at java.awt.EventQueue$3.run(EventQueue.java:692)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
  at java.awt.EventQueue$4.run(EventQueue.java:708)
  at java.awt.EventQueue$4.run(EventQueue.java:706)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
  at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
  at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
  at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
  at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
  at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
  </code></pre>
  
  <p>the method of reading </p>
  
  <pre><code>private DefaultTableModel createModel(String srtPath) {
      int maxLine = ReadFile.maxLine(srtPath);  // debug
      //Object[][] data = new Object[maxLine][];
      System.out.println(maxLine);  // debug
      ArrayList&lt;String&gt; ends = ReadFile.getFileEndingTime(srtPath);
      ArrayList&lt;String&gt; starts = ReadFile.getFileStartingTime(srtPath);
      ArrayList&lt;String&gt; subs = ReadFile.readSubtitles(srtPath);
      for (int i = 0; i &lt; ReadFile.maxLine(srtPath) - 1; i++) {
          model.addRow(new Object[] {starts.get(i), ends.get(i), subs.get(i)});
      }
  
  
      return model;
  }
  </code></pre>
  
  <p>the line number 221 is :</p>
  
  <pre><code>model.addRow(new Object[] {starts.get(i), ends.get(i), subs.get(i)});
  </code></pre>
  
  <p>when i apply this to my code inside for-loop and delete model.addRow(new..) i get all the value printed right so it is not = null so what  is the issue if i did not delete model.addRow... only the first value of the file are printed </p>
  
  <pre><code>System.out.println(lins.get(i)+" "+starts.get(i)+" "+ ends.get(i)+" "+ subs.get(i));
  </code></pre>
  
  <p>the printed value looks like this</p>
  
  <pre><code>    1 00:00:01,600 0:00:04,080 &lt;b&gt;Mr Magnussen, please state your
  full name for the record.&lt;/b&gt;
  2 00:00:04,080 0:00:07,040 Charles Augustus Magnussen.
  3 00:00:08,960 0:00:12,160 how would you describe your
  </code></pre>
  
  <p>now i will add the every declaration and initialization related to the case</p>
  
  <pre><code>public class GuiInterface extends JFrame {
      String[] columnNames = {"#", "Start", "End", "Translation column"};
      DefaultTableModel model;
  public GuiInterface(String title){
  table = new JTable(new DefaultTableModel(columnNames, 1)); // look here
  
  
    ImageIcon openIcon = new ImageIcon(
                  GuiInterface.class.getResource("/resources/image/folder-icon.png"));
          ImageIcon saveIcon = new ImageIcon(
                  GuiInterface.class.getResource("/resources/image/red-disk-icon.png"));
          ImageIcon newIcon = new ImageIcon(
                  GuiInterface.class.getResource("/resources/image/Actionsnew-icon.png"));
  
  
  
  
          Action openAction = new AbstractAction("Open Subtitle", openIcon) {
              @Override
              public void actionPerformed(ActionEvent e) {
                  ourFileSelector.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
                  ourFileSelector.showSaveDialog(null);
                  ourSrtFile =  ourFileSelector.getSelectedFile();
                  srtPath = ourSrtFile.getAbsolutePath();
                  DefaultTableModel model = createModel(srtPath); //look here
                  table.setModel(model);
              }
          };
  
  }
  
   private DefaultTableModel createModel(String srtPath) {
      //int maxLine = ReadFile.maxLine(srtPath);  // debug
      //Object[][] data = new Object[maxLine][];
      //System.out.println(maxLine);  // debug
      DefaultTableModel model = new DefaultTableModel(columnNames, 0);// and here
      ArrayList&lt;String&gt; ends = ReadFile.getFileEndingTime(srtPath);
      ArrayList&lt;String&gt; starts = ReadFile.getFileStartingTime(srtPath);
      ArrayList&lt;String&gt; subs = ReadFile.readSubtitles(srtPath);
      ArrayList&lt;String&gt; lins = ReadFile.ArraylineLengths(srtPath);
      for (int i = 0; i &lt; ReadFile.maxLine(srtPath) - 1; i++) {
          //System.out.println(lins.get(i)+" "+starts.get(i)+" "+ ends.get(i)+" "+ subs.get(i));
          model.addRow(new Object[] {lins.get(i), starts.get(i), ends.get(i), subs.get(i)});
      }
      return model;
  }
  </code></pre>