Is the JVM a compiler or an interpreter?

Question

I have a very basic question about JVM: is it a compiler or an interpreter?

If it is an interpreter, then what about JIT compiler that exist inside the JVM?
If n

Answer 1

JVM have both compiler and interpreter. Because the compiler compiles the code and generates bytecode. After that the interpreter converts bytecode to machine understandable code.

Example: Write and compile a program and it runs on Windows. Take the .class file to another OS (Unix) and it will run because of interpreter that converts the bytecode to machine understandable code.