Starting Java by Rita Houston

The comprehensive descriptions and explanations for each item illuminate what to do, what not to do, and why.
Updated techniques and best practices on classic topics, including objects, classes, libraries, methods, and serialization
How to avoid the traps and pitfalls of commonly misunderstood subtleties of the language
Focus on the language and its most fundamental libraries: java.lang, java.util, and, to a lesser extent, java.util.concurrent and java.io