RubyArray.RubyArray.RubyRange.RubyRange.RubyLazyEnumerator.RubyArray.size().RubyHash.size().RubySet.size().RubyArray of lines in str split using the supplied record
separator (System.getProperty("line.separator") by default).RubyArray of lines in str split using given record
separator.LinkedIdentityMap is implemented by IdentityHashMap and takes
advantage of LinkedList to keep the key elements ordered by their insertion
sequence.LinkedIdentityMap.LinkedIdentityMap by given Map.RubyString of length integer with str left justified and padded
with whitesapce; otherwise, returns str.RubyString of length integer with str left justified and padded
with padstr; otherwise, returns str.LongSuccessor generates a successor of any given Long.