code: public static void write(char c, Writer writer) {
          try {
              writer.write(c);
          } catch (IOException e) {
              throw E.ioException(e);
          }
      }
docs: Write a character to a {@link Writer}.
  
  The writer is leave open after the character after writing.
  
  @param c
  the character to be written
  @param writer
  the writer to which the character is written