What are bytecodes and how does the JVM handle them

Question

I heard many times that Java implemments JIT(just-in-time) compilation, and its bytecodes which are portable across platforms get \"interpreted\" by JVM. However, I don\'t r

Answer 1

When you compile something in Java, the compiler generates bytecode. This is native code for the Java Virtual Machine. The JVM then translates the bytecode to native code for your processor/architecture, this is where the JIT happens. Without JIT, the JVM would translate the program one instruction at a time, which is very slow.