ATM Simulation using Java and C++ integrated

develop a simulation of an automatic teller machine (ATM).? The front end of the application is to be a Java-based GUI. The Java-based application is to be partially developed using Design Patterns. Mathematical processing is to be conducted using a C++ based application engine. ? a test strategy for the application using JUnit testing must be done. also the coder must conduct a range of tests for the application and submit the results.