What will be the accurate Regular Expression for my String?

Question

An example string:

AB-XYZ-123

Where:

AB : Any two capital alphabets only, no symbol, no numbers, no Small letter alphabets.

- : A - symbol only, nothing else.

XYZ: Any three capital characters capital letter alphabets combination.

- : A - symbol only, nothing else.

123: Any three numbers ([0-9]) combination.

and yeah I am very weak in creating regex.

Answer 1

It is

^[A-Z]{2}-[A-Z]{3}-[0-9]{3}$

Answer 2

Try this one

^[A-Z]{2}-[A-Z]{3}-\d{3}$