I also present the results of a DAP benchmark run on leading Java 2 Runtime Environment (J2RE) implementations. Every developer knows performance degrades when higher levels of data abstraction are ...

That is, encapsulation, as manifested in the Java language, does not guarantee protection of internal data. As a developer, you are free to expose the internals of your class.

Examines several design issues, including selection of data structures based on operations to be optimized, algorithm encapsulation using classes and templates, and how and when to use recursion.