What major programming language does Unreal Engine 4 use?

Unreal Engine 4 uses C++ as its major programming language because C++ provides a powerful and efficient environment for game development. C++ allows developers to have full control over memory management and performance optimization, making it well-suited for creating complex and resource-intensive game engines. Additionally, C++ offers a wide range of libraries and frameworks that can be leveraged to enhance the engine's capabilities and support various platforms and hardware configurations. Overall, C++ is a preferred programming language for Unreal Engine 4 due to its performance, flexibility, and extensive ecosystem.