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4. (Check SSN) Write a number in the format check whether the inp

4. (Check SSN) Write a number in the format check whether the inp

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Object-Oriented Programming

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4. (Check SSN) Write a program that prompts the user to enter a Social Security number in the format DDD-DD-DDDD, where D is a digit. Your program should check whether the input is valid. Here are sample runs: Enter a SSN: 232-23-5435 -Enter 232-23-5435 is a valid social security number Enter a SSN: 23-23-5435 Enter 23-23-5435 is an invalid social security number
Transcribed Image Text:4. (Check SSN) Write a program that prompts the user to enter a Social Security number in the format DDD-DD-DDDD, where D is a digit. Your program should check whether the input is valid. Here are sample runs: Enter a SSN: 232-23-5435 -Enter 232-23-5435 is a valid social security number Enter a SSN: 23-23-5435 Enter 23-23-5435 is an invalid social security number
3. (Days of a month) Write a program that prompts the user to enter a year and the first three letters of a month name (with the first letter in uppercase) and displays the number of days in the month. Here is a sample run: Enter a year: 2001 -Enter Enter a month: Jan Jan 2001 has 31 days JEnter Enter a year: 2016 JEnter Enter a onth: Feb JEnter Jan 2016 has 29 days
Transcribed Image Text:3. (Days of a month) Write a program that prompts the user to enter a year and the first three letters of a month name (with the first letter in uppercase) and displays the number of days in the month. Here is a sample run: Enter a year: 2001 -Enter Enter a month: Jan Jan 2001 has 31 days JEnter Enter a year: 2016 JEnter Enter a onth: Feb JEnter Jan 2016 has 29 days
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