Java Collections by John Zukowski - A complete reference on Java Collections

For Java developers of all levels, Java Collections provides a truly indispensable guide to using the built-in collection classes, in an extremely clear and well-organized text. This title sets a high standard for a programming reference, one that will be appreciated by a wide range of readers.

Although the Java collection classes are not nearly as complicated as the Standard Template Library classes in C++, it can still be a bit daunting to figure out whats included and whats not. Beginning with the simple historical Java collection classes (for arrays, Vector, Hashtable, and Stack), the author shows you just how to do it, with clear reference to useful APIs for each collection type, plus short code snippets showing these APIs in action.

The standout feature of this title is its clear presentation of the Java Collection Framework, the built-in set of classes in todays Java 2 standard. Other texts can get muddled with their coverage of these classes, but this one never loses the reader. Starting with the APIs that are available for every collection class, the book builds to show whats available in linked lists and map classes. The author does a great job at avoiding the confusion between different implementations of these basic container shapes. (Of course, he does explain the difference between HashMap, WeakHashMap, and TreeMap, for example, but not before showing which APIs are common to all map classes.)

Beyond choosing and using the right collection class for the job, this text also excels at showing off the built-in algorithms that are available for manipulating collections (like for sorting and searching). Advanced sections give advice for defining your own custom collection classes should you need to go beyond the built-in classes. Final chapters look at third-party collection classes (like the JGL and util.concurrent package) for doing even more.

Its the clear focus on understanding and using todays Java collection classes effectively that helps make this title a winner. In all, Java Collections is a handy and truly worthwhile guide to using Java collections, something that all Java developers need to master to write effective software. --Richard Dragan

Topics covered:

• Guide to programming with Java collection classes
• The historical Java collection classes
• Arrays (declaring and creating arrays, copying and cloning, immutability, assignments and reflection, character arrays)
• The Vector and Stack classes (basic operations and programming tips)
• The Enumeration interface (custom enumeration classes)
• The Dictionary, Hashtable, and BitSet classes (APIs and programming hints)
• The Java Collections Framework
• The Collection interface (built-in APIs for all collections)
• Using sets (including HashSet and TreeSet)
• List classes (including bidirectional iteration)
• Maps (including map entries, the HashMap, WeakHashMap, and TreeMap classes)
• Sorting with collections (designing with Comparable, SortedSet, and SortedMap)
• Advanced features (prebuilt collections, searching and generic list operations)
• Array algorithm support (filling, sorting, and searching arrays)
• Hints for building custom collection classes
• Forward and backward compatibility with Java collection classes
• Choosing the right collection
• Alternative collection class libraries (JGL, util.concurrent, and Colt, installation and programming hints)
• Quick reference to collection APIs

A complete reference on Java Collections
This book is well organized and is an easy to use reference. It has in-depth coverage of collection classes and their uses. Code examples are made very simple to understand and easy to follow because of UML(pictorial) representation. For advance developers, it's good to learn about the common mistake.

The sections on each collection interface and implementation form a great reference. You would learn to create multimaps and priority queues, through real world best examples. The book also offers tips on choosing an appropriate data collection type. Material on how different collections interact with threading particularly useful.

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