code: @Deprecated
      public final void reset(String str, int start, int count)
      {
          char[] chars = null;
          
          if (str != null) {
              chars = str.toCharArray();
          }
          
          reset(chars, start, count);
      }
docs: Reset the iterator to iterate over <code>count</code> characters
  in <code>text</code> starting at <code>start</code>. This allows
  clients to reuse an iterator.
  
  @param str the new string of characters over which to iterate.
  @param start the index of the first character over which to iterate.
  @param count the nuber of characters over which to iterate.
  
  @deprecated This API is ICU internal only.
  @hide draft / provisional / internal are hidden on Android