Search code examples
passwordspseudocode

Java program that indicates if the input string is a valid password

Hi looking for help on a project, I need Java program that indicates if the input string is a valid password. Requirements are it should be at between 8 and 15 characters in length, it should contain at least one uppercase character and it should contain at least one digit (number). Any help will be very much appreciated.

Solution 
  • String passwd = "Asscw1q2";
String pattern = "^(?=.*[0-9])(?=.*[A-Z]).{8,15}$";
System.out.println(passwd.matches(pattern));

    (?=.*[0-9])- atLeast 1 digit

    (?=.*[A-Z])- atLeast 1 upperCase

    .{8,15}- 8 <= Length <= 15

    prints true if the pattern matches.