What is "The Strategy Pattern: The Full Code" about?

The full strategy pattern project as real, browsable files and folders, interfaces and concrete classes separated, in C++, TypeScript, JavaScript, and Java.

What topics does "The Strategy Pattern: The Full Code" cover?

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

Strategy Pattern: Complete Multi-File Code Example

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

main.cpp

#include <memory>
#include "duck/Duck.h"
#include "duck/SimpleFlyBehavior.h"
#include "duck/JetFlyBehavior.h"
#include "duck/NoFlyBehavior.h"
#include "duck/SimpleQuackBehavior.h"
#include "duck/NoQuackBehavior.h"

int main() {
    Duck wildDuck(
        std::make_unique<SimpleFlyBehavior>(),
        std::make_unique<SimpleQuackBehavior>()
    );

    Duck rubberDuck(
        std::make_unique<NoFlyBehavior>(),
        std::make_unique<NoQuackBehavior>()
    );

    Duck mountainDuck(
        std::make_unique<JetFlyBehavior>(),
        std::make_unique<SimpleQuackBehavior>()
    );

    wildDuck.performQuack();
    wildDuck.performFly();

    rubberDuck.performQuack();
    rubberDuck.performFly();

    mountainDuck.performQuack();
    mountainDuck.performFly();

    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.