logo CodeStepByStep logo


Language/Type: General regular expressions

Write a regular expression that will match each of the following patterns:

Sequences of one or more occurrence of the letter "A"
Sequences of pairs "AB" zero or more times
"GOOGLE" with 2 or more "O" characters, such as "GOOOOGLE", with any capitalization

You must log in before you can solve this problem.

Log In

Need help?

Stuck on an exercise? Contact your TA or instructor.

If something seems wrong with our site, please

Is there a problem? Contact us.