Problem Solving with C++ (10th Edition)
Problem Solving with C++ (10th Edition)
10th Edition
ISBN: 9780134448282
Author: Walter Savitch, Kenrick Mock
Publisher: PEARSON
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Chapter 12.1, Problem 3STE
Program Plan Intro

Defining a class in separate files:

  • User can separate the file by using three files such as interface file, implementation file and application file.
  • Interface file:
    • This file contains the definition of class.
    • The name of interface header file ends in “.h”.
    • This file also contains declaration of any function such as member function or friend function and overloaded operators that describes basic operations for the class.
    • This file contains comments for given function and operators are used.
  • Implementation file:
    • Implementation file contains the definitions for all declared functions and overloaded operations in interface file.
    • This file also contains member variables.
    • This file must have an include directive.
      • The given directive is represented by the quotes around the name of file.
      • Example: #include "sample.h".
    • The interface and implementation file usually contains the same name but end with different suffixes.
  • Application file:
    • The application file contains the main part of the program.
    • This file also contains any additional declaration of function and constant declaration.
    • This file also must contain an include directive of the interface file name.

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