String pattern match

Question

hi all.
there is a request :
get user input string, and use it as string Pattern regular expression, to match the first string in the memory, and print it.
a JTextField to get user input, and to create regular expression :
//breg is user input string.
if( !breg.endsWith("*") ) breg += "*";
//only alow a-z, A-Z, 0-9, _ , -, . , :, , , \ , /
String reg = breg.replaceAll("\\*",
"[a-zA-Z0-9_ \\\\./\\\\:,\\\\-\\\\\\\\]*").
replaceAll("\\?", "[a-zA-Z0-9_ \\\\./\\\\:,\\\\-\\\\\\\\]");
then in a loop to check the string in an array tha match this regular expression.
But when input \ it will not match.
Is there any problem in my regular expression.
??????????

Answer 1

And the base class is
public abstract class SearchInputLabel implements KeyListener{
  JWindow dialog = null;
  Component onComponent = null;
  JPanel jPanel1 = new JPanel();
  BorderLayout borderLayout1 = new BorderLayout();
  JLabel jLabelS = new JLabel();
  JTextField jTextField1 = new JTextField();
  Border border1;
   * @param onComponent : it should be a JTable, JTree or JList has been added into
   *                      JViewport in JScrollPane
   *                      else there if it is null, it should be setted after it has been
   *                      added into JViewport in JScrollPane
  protected SearchInputLabel(Component onComponent) {
    this();
    if( onComponent != null ){
      this.onComponent = onComponent;
      onComponent.addKeyListener(this);
  protected SearchInputLabel(){
    try {
      jbInit();
      jTextField1.addKeyListener(this);
    catch(Exception e) {
      e.printStackTrace();
   * @param onComponent : if null, there will do nothing
  public void setOnComponent(Component onComponent){
    if (onComponent != null) {
      this.onComponent = onComponent;
      onComponent.addKeyListener(this);
  private void cancel(){
    dialog.setVisible(false);
    onComponent.requestFocus();
  private void initWin(){
    Window w = (Window) ( (JViewport) onComponent.getParent()).getRootPane().
        getParent();
    dialog = new JWindow(w);
//    dialog.getContentPane().setBackground(new Color(180, 215, 165));
    dialog.getContentPane().setBackground(new Color(Color.white.getRed() - 50,
        Color.white.getGreen() - 50,
        Color.white.getBlue() - 50));
    dialog.getContentPane().add(jPanel1, BorderLayout.CENTER);
    dialog.addWindowFocusListener(new WindowAdapter(){
      public void windowLostFocus(WindowEvent we){
        cancel();
    KeyStroke escape = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0, false);
    Action escapeAction = new AbstractAction() {
      public void actionPerformed(ActionEvent e) {
        cancel();
    dialog.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(escape,
        "ESCAPE");
    dialog.getRootPane().getActionMap().put("ESCAPE", escapeAction);
  protected void showing(){
    if( dialog == null )
      initWin();
  private void jbInit() throws Exception {
    border1 = BorderFactory.createEmptyBorder(5,10,5,10);
    Border border2 = BorderFactory.createCompoundBorder(
        new LineBorder(Color.BLUE), border1);
    border2 = BorderFactory.createCompoundBorder(BorderFactory.createLineBorder(SystemColor.inactiveCaption,2),BorderFactory.createEmptyBorder(5,10,5,10));
//    dialog.setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
//    dialog.setUndecorated(true);
    jPanel1.setLayout(borderLayout1);
    jLabelS.setRequestFocusEnabled(true);
    jLabelS.setText(DBManager.getString("Search_for_label") + " : ");
    jTextField1.setOpaque(false);
    jTextField1.setBackground(Color.GRAY);
    jPanel1.setOpaque(false);
    jPanel1.setBorder(border2);
    jPanel1.add(jLabelS,  BorderLayout.WEST);
    jPanel1.add(jTextField1,  BorderLayout.CENTER);
    jTextField1.setBorder(null);
//    jTextField1.setFont(new Font("Dialog", Font.PLAIN, 14));
  protected int getStringWidth(String str, Font f){
    Rectangle2D rec = f.getStringBounds(str,
                                        ( (Graphics2D) dialog.getGraphics()).getFontRenderContext());
    return (int) rec.getWidth();
}But if there is "\" in table object's value, it can not do well.
So some one can help me to make it response for "\" character
Thanks