Not closing file completely

Question

I have writtten a program that you click a JButton and it reads the file to the last line and prints out in the JTextField the first 9 characters of the last line. I am trying to append to this file and have been successfuly witht eh write method in appending to the file. The problem is when I then go back and click on the JBUtton to read the file again it will not find the line that I just added. If I go to where the file is store and open and save the file and go back and run my program again, then it will read it. HOw can I make it read it once I add that line. It seems that the close() might not be workling. What do I do to completely close the file out.? I have done myFile.Close();

Answer 1

Here it is:
FlowLayout layout1 = new FlowLayout(FlowLayout.LEFT, 30, 40);
          row1.setLayout(layout1);
          row1.add(textLabel);
          lastProvider.setEditable(false);
          row1.add(lastProvider);
          row1.add(findProvider);
          findProvider.addActionListener(new ActionListener() {
               public void actionPerformed (ActionEvent e) {
                    if (e.getSource() == findProvider)
                    try {
                         FileReader newFile = new FileReader("C:\\Program Files\\ptAssignement\\patientListing.XLS");
                         BufferedReader newBuff = new BufferedReader(newFile);
                         boolean eof = false;
                    while (!eof) {
                         String line1 = newBuff.readLine();
                         if ( (line1.lastIndexOf(line1) > -1));
                         String newLastLine = line1.substring(0, 9);
                         lastProvider.setText(newLastLine);
                         newBuff.close();
                         } catch (IOException errors) {
          pane.add(row1);
     pane.add(row1);
          FlowLayout layout2 = new FlowLayout(FlowLayout.LEFT, 5, 65);
          row2.setLayout(layout2);
          pane.add(row2);
          FlowLayout layout3 = new FlowLayout(FlowLayout.LEFT, 10, 10);
          row3.setLayout(layout3);
          row3.add(providerAssignLabel);
          row2.add(patientListLabel);
          provider.addItem("MD # 1");
          provider.addItem("MD # 2");
          provider.addItem("MD # 3");
          provider.addItem("PA/NP # 1");
          provider.addActionListener(new ActionListener () {
          public void actionPerformed (ActionEvent e) {
          try {
          if (addToList.isSelected());
               BufferedWriter bw = new BufferedWriter(new FileWriter("C:\\Program Files\\ptAssignement\\patientListing.XLS", true));
               bw.write((String)provider.getSelectedItem() + "\t");
               bw.newLine();
               bw.flush();
                    bw.close();
          lastProvider.setText((String)provider.getSelectedItem().toString());
          } catch (IOException err2) {
     row3.add(provider);
          row3.add(patientNameLabel);
          row3.add(patientNameText);
          row3.add(patientSsnLabel);
          row3.add(patientSsnText);
          pane.add(row3);