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Here's what I've learned over 20 years of working with both C++ and Java (and more years before that with C++): As a rule of thumb, when you convert optimized C++ to Java, the code is about 3x slower.

Advocates of open source Java are moving forward with an effort to let Java programmers access non-Java APIs, including many interfaces used by C programmers. Called Project Panama, the proposal is ...

SUN Java provides a mechanism for integration with functions coded in C/C++ or assembler, and basically offers two frameworks: Java Native Interface (JNI), and Java Native Access (JNA). In this paper, ...