Based on Bloch and Gafter's standing room only Java Puzzlers talk at JavaOne,
the heart of the book comprises over 100 Java programming language puzzlers:
brainteasers that challenge the intellect while alerting programmers to the traps,
pitfalls, and corner cases that lurk in the nether regions of the Java platform.
All of the puzzles from the authors' popular JavaOne presentations are
included, as are many puzzles never before seen in public. There are two major
types of puzzles in the book. Most of the puzzles take the form of short
programs that appear to do something but actually do something else. Readers
will be encouraged to predict the behavior of the program before running it.
After running the program, readers will be encouraged to figure out why it
behaved as it did before consulting the solution. In a second type of puzzle, the
reader will be asked to write a short program that performs some specific task.
Most of the solutions will contain a "moral," a rule the reader can follow to
avoid the problematic behavior demonstrated in the puzzle. The puzzles are
grouped into chapters based on the primary platform features they exercise and
to maximize readability, fun, and pedagogical effectiveness.
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