- consume
Consumes (removes) numberOfItems at once. Removes the given number of items from
the stream.
- current
Returns the item the stream is currently pointing at. This method does not
change the internal state
- fetch
Fetches the next item from the stream.
- next
Returns the next n-th item in the stream. Calling this method with 0 as
parameter, will return the c
- setProblemCollector
Installs the given problem collector.