by Gilad Bracha
Note: This lesson covers a language feature introduced in the
latest release of the
JavaTM 2 Platform Standard Edition version 5.0.
Visit the
J2SE 5.0 download page.
Introduced in J2SE 5.0, this long-awaited enhancement to the type system
allows a type or method to operate on objects of various types while providing
compile-time type safety. It adds compile-time type safety to the Collections
Framework and eliminates the drudgery of casting.
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Introduction
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Defining Simple Generics
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Generics and Subtyping
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Wildcards
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Generic Methods
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Interoperating with Legacy Code
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The Fine Print
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Class Literals as Runtime-Type Tokens
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More Fun with Wildcards
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Converting Legacy Code to Use Generics
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Acknowledgements