ArrayList to comma separated strings And comma separated strings to an ArrayList.

                

               /**         * Convert Array List to String Comma              *separated         */

              ArrayList<String> list = new ArrayList<String>();

              list.add("one");

              list.add("two");

              list.add("three");

              StringBuilder sb = new StringBuilder();

              for (String s : list) {

                     sb.append(s);

                     if (sb.length() > 0)

                           sb.append(",");

              }

              String returnedItems = sb.toString();

              System.out.println(returnedItems);

              //OUT PUT one,two,three

            

      /**

       * Convert String Comma separated elements          * into List

       */

              List<String> sellItems = Arrays.asList(returnedItems.split(","));

              System.out.println(sellItems.toString());

              //OUT PUT [one,two,three]