Removes from the underlying collection the last element returned by the
iterator (optional operation). This method can be called only once per
call to
next. The behavior of an iterator is unspecified if
the underlying collection is modified while the iteration is in
progress in any way other than by calling this method.
Throws:
-
UnsupportedOperationException - if the
remove
operation is not supported by this Iterator.
-
IllegalStateException - if the
next method has not
yet been called, or the
remove method has already
been called after the last call to the
next
method.