3. (Checking password) Some Websites impose certain rules for passwords. Write a method that checks whether a string is a valid password. Suppose the password rule is as follows: A password must have at least eight characters. A password consists of only letters and digits. A password must contain at least two digits. Write a program that prompts the user to enter a password and displays "Valid Password" if the rule is followed or "Invalid Password" otherwise.

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A: Question. int and float are examples of

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