HI Phoebe, Welcome to Javaranch, we hope you'll enjoy your stay here. KM stands for Khalid A. Mughal who wrote a book about the Java Programmer Certification together with Rolf W. Rasmussen. The link to the book's website can be found here: http://www.ii.uib.no/~khalid/pgjc/jcbook JQ+ is a very good mock test engine. You can find information about it here: http://www.enthuware.com/jqplus/index.html Please, read the Javaranch Naming Policy and register again. Thank you for your cooperation.
Hey Phoebe.. Welcome to JAVARANCH WORLD!!! trust me people here are so co-operative and you can get all your doubts cleared.. Looking forward for your queries and your valuable suggestions.. Sonir