What is "The Factory Method Pattern: The Full Code" about?

The full factory method pattern project as real, browsable files and folders, in C++, TypeScript, JavaScript, and Java.

What topics does "The Factory Method Pattern: The Full Code" cover?

This article covers: factory method pattern full example, factory pattern project structure, factory method c++, gang of four design patterns, design patterns explained.

Factory Method Pattern: Complete Multi-File Code Example

The last two posts built the factory method pattern piece by piece. This post is the reference: the whole project, as real files in real folders.

main.cpp

#include <iostream>
#include "zoo/AnimalFactory.h"
#include "zoo/RandomAnimalFactory.h"
#include "zoo/BalancedAnimalFactory.h"

void populateZoo(AnimalFactory& factory, int count) {
    for (int i = 0; i < count; ++i) {
        auto animal = factory.createAnimal();
        std::cout << animal->name() << "\n";
    }
}

int main() {
    std::cout << "Random:\n";
    RandomAnimalFactory randomFactory;
    populateZoo(randomFactory, 6);

    std::cout << "Balanced:\n";
    BalancedAnimalFactory balancedFactory;
    populateZoo(balancedFactory, 6);

    return 0;
}

Run this yourself: This exact file layout lives in the code-practice repo. Clone it, cd into whichever language folder, and build it the same way as the other labs in this series.