Q1: Write A Program That Reads A String From The Keyboard

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Q1 Write A Program That Reads A String From the Keyboard And Tests Wh Write a program that reads a string from the keyboard and tests whether it contains a valid date. Display a message explaining why it is not valid. The input date will have the format mm/dd/yyyy. A valid month value mm must be from 1 to 12 (January is 1). The day value dd must be from 1 to a value that is appropriate for the given month. February has 28 days except for leap years when it has 29. A leap year is any year that is divisible by 4 but not divisible by 100 unless it is also divisible by 400.

Dr. Jack HW Helper · Accepted Answer

The objective of this program is to validate a date input string with the format mm/dd/yyyy, ensuring it conforms to calendar rules and provides specific feedback when invalid. This task involves parsing the string, validating its components, and handling leap year calculations according to Gregorian calendar rules. Initially, the program prompts the user to input a date string. The string is then parsed by splitting it into its components: month, day, and year. This is typically done by identifying the '/' separators. Each component is converted from a string to an integer for validation purposes. The first validation step involves checking the month value (mm). Valid months range from 1 to 12. If the month is outside this range, the program informs the user about the invalid month and terminates or prompts for re-entry. If valid, the next validation pertains to the day component (dd). The maximum number of days in a month varies, with April, June, September, and November having 30 days; January, March, May, July, August, October, and December having 31 days; February having 28 days or 29 in a leap year. To validate the day, the program determines the correct maximum day based on the month and whether the year is a leap year. The leap year check involves three conditions: the year must be divisible by 4, not divisible by 100 unless also divisible by 400. When evaluating February, if these conditions are met, February has 29 days, otherwise 28 days. If the day component exceeds the maximum days in the respective month, the program will inform the user why the date is invalid and possibly specify the correct range. Finally, if all components are valid, the program confirms that the date is valid. This validation provides clear feedback for any invalid input, enabling users to correct their entries accordingly. This approach ensures an accurate and user-friendly method for date validation adhering to calendar rules, including leap year considerations. References Gandh

Q1 Write A Program That Reads A String From the Keyboard And Tests Wh

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