Compares this year to another year.
!(p)
The comparison is based on the value of the year.
It is "consistent with equals", as defined by {@link Comparable}.
@param other the other year to compare to, not null
@return the comparator value, negative if less, positive if greater
Compares this year to another year. !(p) The comparison is based on the value of the year. It is "consistent with equals", as defined by {@link Comparable}.
@param other the other year to compare to, not null @return the comparator value, negative if less, positive if greater