Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Declare a Boolean variable named isValidPasswd. Use isValidPasswd to output "Valid" if checkStr contains at least 4 letters and checkStr's length is greater than 7, and "Invalid" otherwise.
Ex: If the input is 58m6SF7w, then the output is:
Valid
Ex: If the input is NKXwLD2, then the output is:
Invalid
Note: isalpha() returns true if a character is alphabetic, and false otherwise. Ex: isalpha('a') returns true. isalpha('8') returns false.
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