It’s that simple. (Well, almost — there are a few things you can’t name your variables, which we’ll talk about in the next section)
You can also assign values to your variables upon declaration. When we assign values to a variable using the assignment operator (equals sign), it’s called an explicit assignment:
int a= 5; // explicit assignment
You can also assign values to variables using an implicit assignment:
int a(5); // implicit assignment
Even though implicit assignments look a lot like function calls, the compiler keeps track of which names are variables and which are functions so that they can be resolved properly.
