Creating A Program That Will Compile And Run Another Java Program

I'm creating a program that will compile and run another java program:Lets say I have a program in directory

D:HelloWorldsrc
and compiled program will be in
D:HelloWorldin
inside src and bin is a folder hello (that's a package)

package hello;
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World");
System.out.println("Hello World");
}
}

This program will be run by another program (that's the program that I am creating).Here is the code of my program:

package runnercompiler;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
public final class RunnerCompiler {
 
[code]....