How do I change this string Please someone help this newbie :)

Hi All
I have a string which is a list of file in a folder. I am putting this list into a submenu. The files are formated like this
Jesse_Smith_08_08_2001
Jackie_Test_04_04_2000
I would like to view them like this
Jesse Smith 08.08.01
Jackie Test 04.04.00
How can I do this
PLEASE HLEP ME
I have spent 2 days trying to do this
Craig

Thanks for the code tolmark
Can I ask one more this?
How can I integrate your code into this code ??
private void addItem(JMenu menu, char a)
    //Get file names from folder "Epod Configuration/Orders To Upload/"
    File dir = new File("Epod Configuration/Orders To Upload");
    File[] files = dir.listFiles();
    for (int j=0; j < files.length; j++)
      String trim = ""+files[j];
      int ndx;
      if ((ndx = trim.lastIndexOf('/')) != -1) trim = trim.substring(ndx+1);
      if (trim.charAt(0) == a);
      String s = trim;
      int idx = s.lastIndexOf('.');
      // remove extension
      if (idx != -1)
        s = s.substring(0, idx);
      System.out.println(s);
        JMenuItem mi = new JMenuItem(s);
        menu.add(mi);
}sorry to have to ask but I just can't seam to do it .
Thanks
Craig

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How do I change this string Please someone help this newbie :)

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