Set the character that should be displayed on a graphical user interface for the position specified by this character iterator. This is useful for character positions for which the (train time) key set has more than one value. Note that this assumes that the character keys in the font correspond to Unicode code point values.

Set the key of the character that should be displayed on a graphical user interface for the position specified by this character iterator. This is useful for character positions for which the (train time) key set has more than one value.