JAVA GENERICS AND COLLECTIONS NAFTALIN PDF

Generics and the greatly expanded collection libraries have tremendously increased the power of Java 5 and Java 6. Java Generics and Collections covers everything from the most basic uses of generics to the strangest corner cases. Topics covered include: Fundamentals of generics: type parameters and generic methods Other new features: boxing and unboxing, foreach loops, varargs Subtyping and wildcards Evolution not revolution: generic libraries with legacy clients and generic clients with legacy libraries Generics and reflection Sets, Queues, Lists, Maps, and their implementations Concurrent programming and thread safety with collections Performance implications of different collections Generics and the new collection libraries they inspired take Java to a new level. If you want to take your software development practice to a new level, this book is essential reading. Philip Wadler is Professor of Theoretical Computer Science at the University of Edinburgh, where his research focuses on the design of programming languages.

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Generics and the greatlyexpanded collection libraries have tremendously increased the power ofJava 5 and Java 6. Java Generics and Collections covers everything f Java Generics and Collections covers everything from the mostbasic uses of generics to the strangest corner cases. Topics covered include: Fundamentals of generics: type parameters and generic methods Other new features: boxing and unboxing, foreach loops, varargs Subtyping and wildcards Evolution not revolution: generic libraries with legacy clients andgeneric clients with legacy libraries Generics and reflection Sets, Queues, Lists, Maps, and their implementations Concurrent programming and thread safety with collections Performance implications of different collections Generics and the new collection libraries they inspired take Java to anew level.

If you want to take your software development practice toa new level, this book is essential reading. He has most recently served He has most recently served as an architect and mentor at NSB Retail Systems plc, and as the leader of the client development team of a major UK government social service system. However,if you examine the source code of the library,you will see that none of the four is defined in terms of any of the others;instead,each is defined directly.

The more direct version is longer and harder to maintain,but faster. Whether such a speedup is worth the code duplication depends on the situtation in which the code is used. Since the Java utilities might well be used in a critical inner loop,the designers of the library were right to perfer speed of execution over economy of expression. But this is not always the case. The syntax is deliberately similar and the semantics are deliberately different.

If you use a list of integers ,a list of strings,and a list of lists of string,there will be three versions of the code.

If you use lists of a hundred different types,there will be a hundred versions of the code-a problem known as code bloat. In Java,no matter how many types of lists you use,there is always one version of the code,so b

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