fc.remove(fileTablePanel); fileTablePanel = null;
  public void uninstallComponents(JFileChooser fc)  {    fc.remove(bottomPanel);    bottomPanel = null;    fc.remove(fileListPanel);    fileListPanel = null;    fc.remove(topPanel);    topPanel = null;        directoryModel = null;    fileTextField = null;    directoryComboBox = null;  }