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.

I've run into a little bit of a problem. I am currently developing a scientific app for MacOS X Carbon, Windows XP .NET, and Linux GTK+ (later on) in C++ that connects to an Intersystems Cache OODBMS ...

If you didn’t know better, you might believe that Sun Microsystems had designed the JNI (Java Native Interface) API with the goal of discouraging Java developers ...