Sun Certified Java Programmer Pre-Exam Essentials
by Dylan Walsh
The purpose of this document is to provide a basis for revising for the Sun Certified Programmer examinations, not to teach the Java language or the topics required for the exam. It is designed to collect all the essential information you need to retain, in one place, and is designed for someone who has already finished their own study and is about to take the exam.
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by James Sutherland, Doug Clarke - Wikibooks
Java persistence could be defined as storing anything to any level of persistence using the Java programming language. This book is focused on storing Java objects to relational databases, in particular using the Java Persistence API (JPA).
by David Etheridge - BookBoon
This volume is the second part of the 'Java'-series written by David Etheridge. This book gives the reader an introduction to Documentation, Abstract and Parent classes, Inheritance, Error in Java, Java Interfaces and much more.
by Alexandre Patchine, Dr. Heinz M. Kabutz
The book contains real-world advises and solutions from daily Java experiences. It covers most seeked Java topics and some other related ones. Although not a Java tutorial itself, it makes an excellent companion for a good Java textbook.
by Peter Sestoft - IT University of Copenhagen
This is a concise description of the Java programming language, version 1.1 and later. It is a quick reference for the reader who has already learned (or is learning) Java from a standard textbook and who wants to know the language in more detail.