A beginner-friendly guide for C programmers transitioning to C++, using an LED example to illustrate the evolution from C structs to C++ structs and classes. Covers how function pointers in C approximate OOP methods, how C++ structs allow methods alongside data, and how access specifiers (public/private) and constructors improve encapsulation and initialization. Also highlights the key difference between C++ structs (public by default) and classes (private by default), and explains that the choice between them is largely a matter of style in modern C++.
