Two paths are available for migrating Java applications to .Net: upgrade them to Visual J# .Net or convert them to Visual C# .Net. Upgrading Java applications to J# is the quickest and easiest way to ...

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.