I noticed that age and id were both declared as integers on the same line. Is it only useful to declare variables this way if they’re the same type?

Hi Elijah,

Yes, exactly. In C++, when you declare multiple variables on the same line, they all have to be the same type. So if you're declaring int age, id;, both variables are integers.

This is mostly for convenience and cleaner code when you're working with variables of the same type. But if the variables are different types — like an int for age and a string for name — then you'd declare them separately:

int age = 24;
string name = "John";

So grouping variables on one line only works when their data type is the same.

If you have more questions, I’m here to help.