BeschreibungLearn, review, tune, and interview in the Java space. JavaInfo contains over 1,200 question / answer sets that I've created from several years of work and research. There are 44 categories that include subjects like APIs, Databases, Collections, JSPs, Threading, and XML.
Tag questions as ones you need to review later, and easily get back to them.
Some questions are easy, while others probably can't be answered by most seasoned Java developers.