To declare a variable you use the syntax "type <name>". Here are some variable declaration examples:

1- int x;

2- char letter;

3- float the_float;

It is permissible to declare multiple variables of the same type on the same line; each one should be separated by a comma.

1- int a, b, c, d;

If you were watching closely, you might have seen that declaration of a variable is always followed by a semicolon (note that this is the same procedure used when you call a function).</name>