Summary of collections and list in java:

http://www.idevelopment.info/data/Programming/java/collections/Collections_in_Java.pdf

AWK : Awk is a 'C' language primarily used to quick text processing. Here are list of links to tutorial which can be handy yet quirky. As (ii) describes it, awk is a pattern scan processing language.


(i) http://www.cs.ucsb.edu/~sherwood/awk/gawk-tutorial.pdf
(ii) http://stud.wsi.edu.pl/~robert/awk/tutorial_1a.html