forwardingmultiset sample code

I make some forwardingmultiset sample code.
this page written in Japanese,but maybe Google site system 'll translate automatically if you click right bottom button.

http://java.akjava.com/library/google-collections/forwardingmultiset

multiset is very useful something count.
if you need more functions on that,you can use ForwardingMultiset.

I add new Functions just count,keep maxvalue and keep minvalue.