In Chapter 22, we developed an object-oriented design for our ATM system. We now begin implementing our object-oriented design in C++. In Section 23.2, we show how to convert class diagrams to C++ code. In Section 23.3, we tune the design with inheritance and polymorphism. Then we present a full C++ code implementation of the ATM software in Section 23.4. The code is carefully commented and the discussions of the implementation are thorough and precise. Studying this application provides the opportunity for you to see a more substantial application of the kind you’re likely to encounter in industry.