Question library
Questions from real interviews. Drill any of them by voice in a couple of minutes, with an interviewer, a score and feedback.
Tell me how memory is organized in the JVM: what's the difference between the stack and the heap, and what's stored where?JuniorWhat is the garbage collector in Java, and how does it figure out which objects can be removed?JuniorIn production, a service crashes with an OutOfMemoryError every couple of days. How would you go about finding the cause?Mid-level