code: public static String concatAddressLines(Address address, String delimiter) {
          StringBuilder s = new StringBuilder(256);
          for (int i = 0, max = address.getMaxAddressLineIndex(); i <= max; i++) {
              if (i > 0) {
                  s.append(delimiter);
              }
              s.append(address.getAddressLine(i));
          }
          return s.toString();
      }
docs: Get a single line address which uses the delimiter between the original lines.