Can anyone make program in java that can write and run another java program?

Question

Meta programming

Answer 1

you could simply put your code in a string and let one program write it into a file and compile it etc

Answer 2

As far as I know, it cannot directly do that, though it may be possible to do it by sending orders to the OS.
If you are interested in meta programming, i would suggest you start with non-compiled languages

Answer 3

I mean can my java program compile it to bytecode and run?