In software engineering, code transforms from human-readable high-level languages like Python or Java into machine-readable binary (machine code). An intermediate step, bytecode, bridges ...

On the other hand, high-level languages are increasingly compiled to byte code for a virtual machine, which is then interpreted and JIT-compiled. When faster runtime speed is needed, ...

As you can see this code sets a variable called i, which is stored 8 bytes down on the stack, to 15. It then sets j , which is stored 12 bytes down on the stack, to 25.