Jul 23, 2025 · In C++, const is a keyword used to declare a variable as constant, meaning its value cannot be changed after it is initialized. It helps protect important values from accidental …

Constants When you do not want others (or yourself) to change existing variable values, use the const keyword (this will declare the variable as "constant", which means unchangeable and …

In this tutorial, we will learn about variables, literals, and constants in C++ with the help of examples. In programming, a variable is a container (storage area) to hold data.

Oct 17, 2024 · Constant variables (covered in this lesson). Object-like macros with substitution text (introduced in lesson 2.10 -- Introduction to the preprocessor, with additional coverage in …

Nov 9, 2024 · Constant variables in C++ are variables whose values cannot be altered after they are set. By using the const keyword, a variable becomes read-only, preventing accidental …

As the name suggests the name constants is given to such variables or values in C++ programming language which cannot be modified once they are defined. They are fixed values …

Learn about C++ variables, identifiers, and constants. This guide covers how to declare, assign, and use variables, the rules for identifiers, and defining unchanging constants with the 'const' …

Constants are like a variable except that once defined, their value never changes during the program's execution. In this tutorial, you will learn about Constants in C++.