private static String capitalize(String s){
  if (s == null || s.length() == 0) {
    return "";
  }
  char first=s.charAt(0);
  if (Character.isUpperCase(first)) {
    return s;
  }
 else {
    return Character.toUpperCase(first) + s.substring(1);
  }
}

private static String capitalize ( String s ) { if ( s == null || s . length ( ) == 0 ) { return "" ; } char first = s . charAt ( 0 ) ; if ( Character . isUpperCase ( first ) ) { return s ; } else { return Character . toUpperCase ( first ) + s . substring ( 1 ) ; } }
internal method that capitalizes the first character of a string
