Write n values from aCollection, the first being at pos.
nextLine
Returns a collection of the same type that the stream accesses, containing
the next line up to the next new-line character. Returns the entire rest of the
stream's contents if no new-line character is found.
nextPutAllOn: aStream
Put all the characters of the receiver in aStream.
upTo: aCharacter
Returns a collection of the same type that the stream accesses,
containing data up to aCharacter. Returns the entire rest of
the stream's contents if no such character is found.