Can I test a compiled and linked C++ program with TestNG and Java test cases?

I am familiar with C++ programming and now Im learning Java to write TestNG based tests. To clearify my question: if I write a little software in C++ then compile and link it to get an executable, can I write test cases in Java/TestNG that can access to the C++ based software and test its funtionalities? If yes, how the interfacing between Java test cases and the binary code exactly works?