Outputs this date as a {@code string}, such as {@code 2007-12-03}. !(p) The output will be _in the ISO-8601 format {@code uuuu-MM-dd}.
@return a string representation of this date, not null
See Implementation
Outputs this date as a {@code string}, such as {@code 2007-12-03}. !(p) The output will be _in the ISO-8601 format {@code uuuu-MM-dd}.
@return a string representation of this date, not null