An Introduction to Inheritance

Abstract

Our first program in chapter 3 would normally be typed into a single computer file and presented to the compiler for translation and execution to produce the required results. However, we could separate the object class definition and member function definitions from the function main. Let us say that we put the defintions in a file called message.h and the function main in the file called hello_m.cpp. The file message.h is known as a header file and its contents are shown in figure 4.1. The contents of the program file, hello_m.cpp, are shown in figure 4.2.