code: public MultiChangeBuilder<PS, SEG, S> replaceTextAbsolutely(int start, int end, String text) {
          return absoluteReplace(start, end, ReadOnlyStyledDocument.fromString(
                  text, area.getInitialParagraphStyle(), area.getInitialTextStyle(), area.getSegOps())
          );
      }
docs: Replaces a range of characters with the given text.
  
  It must hold {@code 0 <= start <= end <= getLength()}.
  
  @param start Start index of the range to replace, inclusive.
  @param end End index of the range to replace, exclusive.
  @param text The text to put in place of the deleted range.
  It must not be null.