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Welcome back to my channel! This video is part of our ongoing series on hacking, titled "Hacker Inc and Java as a Skill." Today, we'll be discussing the validation of usernames using regular expressions. When signing up for a website, usernames must meet certain criteria, such as being at least eight characters long. Stay tuned to learn more about these validation constraints and how they impact user registration. Don't forget to subscribe for more videos like this!
