What is the const keyword in C++?

What is the const keyword in C++?

The const keyword in C++ is used to define constants, which are variables that cannot be modified after their initial assignment.

Can you give me an example of how to use const?

Sure! Here's a simple example:

const int MAX_SIZE = 100;

This defines a constant integer MAX_SIZE that cannot be changed.

What happens if I try to change a const variable?

If you try to change a const variable, the compiler will throw an error, preventing the modification.

Are there any best practices for using const?

Yes! It's best to use const for variables that should not change, as it improves code readability and helps prevent bugs.