Constants: Using the const keyword and

In our last lesson, we learned how to create variables using int, float, and char. Variables are powerful because their values can change. But what if you have a crucial value that you never want to change, like PI (3.14159)? If you accidentally modify that value 500 lines later, your entire program's calculations will be wrong.

In programming, we have a special way to protect these important, read-only values: Constants.

Welcome to Lesson 02.03 of the "C Programming for Beginners" Course!

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This lesson belongs to Section 02: Fundamental Concepts

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