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What is Inheritance / how is it implemented in C++ (2)
OO in C++ - beyond the basics example from a Well House Consultants training course
More on OO in C++ - beyond the basics [link]
Source code: second_inheritance.cpp Module: C233
using namespace std;
/* This is a complete example! - A base class "Animal" - subclass "Human" - subclass "Pet" We are doing this in 7 files! 3 files of headers, one for each class 3 files of source, one for each class and the test program (a.k.a. the application) We will compile each of the four sources separately, pulling in the correct headers via #includes, and you use #ifndefs to avoid duplicate loading. */ #include <iostream> #include "pet.h" #include "human.h" int main () { // Set up object pointer array for the underlying base class Animal * Ourhouse [4]; int k; // Set up objects that are animals within that array // even if they are specialised types of animal Ourhouse[0] = new Human("Brenda","Fortesque",21); Ourhouse[1] = new Human("Bob","Marley",52); Ourhouse[2] = new Pet("Robin",6,"Dog",29); Ourhouse[3] = new Pet("Tigger",10,"Cat",50); // Tigger is a tiger! // Loop through the animals and get their names, even // through that will be done differenly for pets and humans for (k=0; k<4; k++) { char * Name = Ourhouse[k]->getName(); int years = Ourhouse[k]->getAge(); cout << "Living there ... " << Name << " aged " << years << endl; } return 0; } Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in C and C++ * C++ for C Programmers * C and C++ Programming * Learning to program in C and C++ * C and C++ Programming Also available on on site courses for larger groups Books covering this topic
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