IT1230809

References:

http://www.java2s.com/Tutorial/Java/0140__Collections/Adoublylinkedlist.htm

http://www.java2s.com/Tutorial/Java/0140__Collections/DoubleEndedListslistwithfirstandlastreferences.htm

http://www.java2s.com/Tutorial/Java/0140__Collections/Demonstratingastackimplementedasalist.htm

http://www.java2s.com/Tutorial/Java/0140__Collections/AQueueImplementedbyaLinkedList.htm