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PopularJava Native Interface: Programmer's Guide and Specification
Year: 2002
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The JavaTM Native Interface (JNI) is a powerful feature of the Java platform. Applications that use the JNI can incorporate native code written in programming languages such as C and C++, as well as code written in the Java programming language. The JNI allows programmers to take advantage of the power of the Java platform, without having to abandon their investments in legacy code. Because the JNI is a part of the Java platform, programmers can address interoperability issues once, and expect their solution to work with all implementations of the Java platform.
This book is both a programming guide and a reference manual for the JNI. The book consists of three parts:
* Chapter 2 introduces the JNI through a simple example. It is a tutorial intended for the beginning users who are unfamiliar with the JNI.
* Chapters 3 to 10 constitute a programmer's guide that gives a broad overview of a number of JNI features. We will go though a series of short but descriptive examples to highlight various JNI features and to present the techniques that have proven to be useful in JNI programming.
* Chapters 11 to 13 present the definitive specification for all JNI types and functions. These chapters are also organized to serve as a reference manual.
This book tries to appeal to a wide audience with different needs for the JNI. The tutorial and programming guide are targeted toward beginning programmers, whereas experienced developers and JNI implementors may find the reference sections more useful. The majority of readers will likely be developers who use the JNI to write applications. The term "you" in this book will implicitly denote developers who program with the JNI, as opposed to JNI implementors or end-users of applications written using the JNI.
The book assumes that you have basic knowledge of the Java, C, and C++ programming languages. If not, you may refer to one of the many excellent books that are available: The JavaTM Programming Language, Second Edition, by Ken Arnold and James Gosling (Addison-Wesley, 1998), The C Programming Language, Second Edition, by Brian Kernighan and Dennis Ritchie (Prentice Hall, 1988), and The C++ Programming Language, Third Edition, by Bjarne Stroustrup (Addison-Wesley, 1997).
The JavaTM Native Interface (JNI) is a powerful feature of the Java platform. Applications that use the JNI can incorporate native code written in programming languages such as C and C++, as well as code written in the Java programming language. The JNI allows programmers to take advantage of the power of the Java platform, without having to abandon their investments in legacy code. Because the JNI is a part of the Java platform, programmers can address interoperability issues once, and expect their solution to work with all implementations of the Java platform.
This book is both a programming guide and a reference manual for the JNI. The book consists of three parts:
* Chapter 2 introduces the JNI through a simple example. It is a tutorial intended for the beginning users who are unfamiliar with the JNI.
* Chapters 3 to 10 constitute a programmer's guide that gives a broad overview of a number of JNI features. We will go though a series of short but descriptive examples to highlight various JNI features and to present the techniques that have proven to be useful in JNI programming.
* Chapters 11 to 13 present the definitive specification for all JNI types and functions. These chapters are also organized to serve as a reference manual.
This book tries to appeal to a wide audience with different needs for the JNI. The tutorial and programming guide are targeted toward beginning programmers, whereas experienced developers and JNI implementors may find the reference sections more useful. The majority of readers will likely be developers who use the JNI to write applications. The term "you" in this book will implicitly denote developers who program with the JNI, as opposed to JNI implementors or end-users of applications written using the JNI.
The book assumes that you have basic knowledge of the Java, C, and C++ programming languages. If not, you may refer to one of the many excellent books that are available: The JavaTM Programming Language, Second Edition, by Ken Arnold and James Gosling (Addison-Wesley, 1998), The C Programming Language, Second Edition, by Brian Kernighan and Dennis Ritchie (Prentice Hall, 1988), and The C++ Programming Language, Third Edition, by Bjarne Stroustrup (Addison-Wesley, 1997).