Using native code

Hello world,
I have this assignment to do. It is that, the user is allowed to enter a process name and when entered, if that perticular process is running, the program should give the attributes of the process. From the information I gathered so far, I understood that, it is not possible to do it with Java. I have to use some other languge such as C++. Could you please tell me how to combine these to languages, and say if the C++ codes results in an array of data, how to get them directly to an array in Java in the program.
Thank you in advance....................

Try reading this first http://java.sun.com/docs/books/tutorial/native1.1/TOC.html
I assume you know how to program in C++

You're perhaps going to want to get into JNI. So, I'm moving this to the Other Java APIs forum, where folks just love to talk about JNI.