performance - Would a multithreaded Java application exploit a multi-core machine very well?

Question

If I write a multi-threaded java application, will the JVM take care of utilizing all available cores? Do I have to do some work?

Answer 1

Unless you use a JVM that has so-called "green" threads (which is very few these days), Java threads are run by OS threads, so multiple threads get run on different cores by default.