Java Samples 0 (String & ArrayList)

/* delete spaces around the string */

public static String deleteSpaces(String x) {
  if (x.startsWith(" ")) x = x.substring(1);
  if (x.endsWith(" ")) x = x.substring(0, x.length()-1);
  return(x);
}

/* convert ArrayList to String */

public static String listToString(ArrayList list) {
  String s = null;
  if (!list.isEmpty) {
     for (int i = 0; i < list.size(); i++) {
        s.concat(list.get(i).toString()+"\n");
     }
  }
  return(s);
}

/* convert String to ArrayList */

public static ArrayList stringToArrayList(String string) {
   String[] pieces = string.split("\n");
   for (int i=pieces.length-1;i>=0;i--) {
      pieces[i] = pieces[i].trim();
   }
   ArrayList a = new ArrayList(Arrays.asList(pieces));
   return (a);
}