0
Alphanumeric codes are a mixture of codes from letters and numbers.
No. "Alphanumeric" refers only to letters and numbers.
no, this is not an alphanumeric character because it has more than one characters
alphanumeric characters are just the alphabet and the digits 0-9. So chances are, it's already written in alphanumeric characters.
Alphanumeric only passwords can only contains letters A-Z and numbers 0-9.
An example of an Alphanumeric only password:
hello123