STARTING OUT W/PROGRAM.LOGIC...-TEXT
5th Edition
ISBN: 2810022369454
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 12PE
Password Weakness Detector
Design a
- Fewer than 8 characters
- Does not contain at least one uppercase letter and one lowercase letter
- Does not contain at least one numeric digit
- Does not contain at least one special character (a character that is not a letter or a numeric digit)
- Is a sequence of consecutive uppercase letters (such as ABCDE)
- Is a sequence of consecutive lowercase letters (such as abcde)
- Is a sequence of consecutive numeric digits (such as 12345)
- Is a repeating sequence of characters (such as ZZZZZ or 55555)
The program should display messages indicating whether any of these weaknesses are found in the password.
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Barcode Validation
As you are aware, barcodes encode numbers. In the Universal Product Code system, each item is
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But not every number is a valid UPC. Why? Part of the answer is the check digit.
In order to catch errors, the rightmost digit is calculated from the others. If this digit does not match
its expected value, you can be assured the barcode is invalid, or has been read incorrectly.
To calculate the check digit, perform the following operations modulo 10:
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• Add the digits in the even positions to the result.
• Subtract the result from 10 to obtain the check digit.
Your Task
Given a 12-digit UPC, you will need to identify whether is is valid or invalid.
The code will be provided from standard input. You simply need to print "valid" or "invalid" in
response.
Notes
The code will be provided on a line by itself, and will consist of numerals alone. You may assume
that it will be…
Chapter 12 Solutions
STARTING OUT W/PROGRAM.LOGIC...-TEXT
Ch. 12.2 - Prob. 12.1CPCh. 12.2 - Prob. 12.2CPCh. 12.2 - Design an algorithm that determines whether the...Ch. 12.2 - Design an algorithm that determines whether the...Ch. 12.2 - Prob. 12.5CPCh. 12.2 - Prob. 12.6CPCh. 12 - Prob. 1MCCh. 12 - Prob. 2MCCh. 12 - If the str variable contains the string "berry",...Ch. 12 - If the str variable contains the string "Redmond",...
Ch. 12 - Prob. 5MCCh. 12 - Prob. 1TFCh. 12 - Prob. 2TFCh. 12 - If the String variable str contains the string...Ch. 12 - The insert library module automatically expands...Ch. 12 - Prob. 5TFCh. 12 - Prob. 6TFCh. 12 - Prob. 7TFCh. 12 - Prob. 1SACh. 12 - If the following pseudocode were an actual...Ch. 12 - Prob. 3SACh. 12 - Prob. 4SACh. 12 - Prob. 5SACh. 12 - Design an algorithm that counts the number of...Ch. 12 - Prob. 2AWCh. 12 - Design an algorithm that counts the number of...Ch. 12 - Design an algorithm that deletes the first and...Ch. 12 - Design an algorithm that converts each occurrence...Ch. 12 - Design an algorithm that replaces each occurrence...Ch. 12 - Assume the following declaration exists in a...Ch. 12 - Prob. 1DECh. 12 - Prob. 2DECh. 12 - Prob. 3DECh. 12 - Prob. 1PECh. 12 - Sentence Capitalizer Design a program that prompts...Ch. 12 - Prob. 3PECh. 12 - Sum of Digits in a String Design a program that...Ch. 12 - Prob. 5PECh. 12 - Alphabetic Telephone Number Translator Many...Ch. 12 - Word Separator Design a program that accepts as...Ch. 12 - Pig Latin Design a program that reads a sentence...Ch. 12 - Prob. 9PECh. 12 - File Encryption File encryption is the science of...Ch. 12 - File Decryption Filter Design a program that...Ch. 12 - Password Weakness Detector Design a program that...
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