What are const variables in C++?

What are const variables in C++?

Const variables in C++ are constants that cannot be modified after their initial assignment. They are declared using the 'const' keyword.

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

Sure! Here's an example:

const int MAX_SIZE = 100;
int array[MAX_SIZE];

In this case, MAX_SIZE is a constant that defines the size of the array.

What happens if I try to change a const variable?

If you try to change a const variable, the compiler will throw an error, indicating that the variable is read-only.

Are there any best practices for using const variables?

Yes! It's best to use const variables for values that should not change, improving code readability and preventing accidental modifications.