Regexp

import java.util.regex.*;
...
      String input =" This is (&^@(#* J123unk";
      String patt = "[^A-Za-z0-9 ]+";
      Pattern p = Pattern.compile(patt);
      Matcher m = p.matcher(input);
      System.out.println(input);
      System.out.println(m.replaceAll(""));

-- MattWalsh - 10 Oct 2008