Summary  
Declaring variables involves defining identifiers and optionally specifying types or initial values so that data can be stored and manipulated in code.  

General domain of usage  
Application development

A beginner-friendly course introducing the essential concepts of C++ programming, including syntax, variables, control flow, functions, and basic data structures. Each section builds foundational knowledge, with practice challenges to reinforce learning.

Learn the basics of C++ syntax, structure, and how to write your first simple programs.

Understand how to declare, initialize, and use variables of different data types in C++.

Learn how to control the flow of your program using conditionals and loops.

Discover how to organize code into reusable functions and understand variable scope.

Work with collections of data using arrays and manipulate text using C++ strings.

Declaring Variables