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Write a Java program for Zeller’s Algorithm, which can be used to determine the day of the week for any date in the past, present, or future. The program should request the user to enter the date values (month, day, and year). Next, the program should apply the algorithm (see below), and display the appropriate day of the week. The program should loop until the user enters 0 for a month. Use the pre-test while loop with sentinel-value structure while (month!=0). In addition, validate that the month is between 0 and 12; and that day is between 1 and 31. Use the while loop structure for error checking.

Write a Java program for Zeller’s Algorithm, which can be used to determine the day of the week for any date in the past, present, or future. The program should request the user to enter the date values (month, day, and year). Next, the program should apply the algorithm (see below), and display the appropriate day of the week. The program should loop until the user enters 0 for a month. Use the pre-test while loop with sentinel-value structure while (month!=0). In addition, validate that the month is between 0 and 12; and that day is between 1 and 31. Use the while loop structure for error checking.

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
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Write a Java program for Zeller’s Algorithm, which can be used to determine the day of the week for any date in the past, present, or future.

The program should request the user to enter the date values (month, day, and year).

Next, the program should apply the algorithm (see below), and display the appropriate day of the week.

The program should loop until the user enters 0 for a month. Use the pre-test while loop with sentinel-value structure while (month!=0).

In addition, validate that the month is between 0 and 12; and that day is between 1 and 31. Use the while loop structure for error checking.

Write a Java program for Zeller's Algorithm, which can be used to determine the day of the week for any date in the past, present, or future. The program should request the user to enter the date values (month, day, and year). Next, the program should apply the algorithm (see below), and display the appropriate day of the week. The program should loop until the user enters 0 for a month. Use the pre-test while loop with sentinel-value structure. In addition, validate that the month is between 0 and 12; and that day is between 1 and 31. Use the while loop structure for error checking. Algorithm: The formula is: G=([2.6M – .2 ] +K +D+ [D/4] + [C/4] – 2C) mod 7 where: M: is the month number K: is the day of the month C: is the century number D: is the year number explanations: M: March is considered month 1 and February is considered month 12. Therefore, January and February are considered to be part of the previous year. C: Is the first two digits of the year D: Is the last two digits of the year G: If this value is less than 0, add a value of 7 to G You need to cast the following expression as an integer: [2.6 M – .2] examples: Month Day Year M K D 76 7 (not 8) 7 4 1776 2008 4 17 1 17 11 17 20
Transcribed Image Text:Write a Java program for Zeller's Algorithm, which can be used to determine the day of the week for any date in the past, present, or future. The program should request the user to enter the date values (month, day, and year). Next, the program should apply the algorithm (see below), and display the appropriate day of the week. The program should loop until the user enters 0 for a month. Use the pre-test while loop with sentinel-value structure. In addition, validate that the month is between 0 and 12; and that day is between 1 and 31. Use the while loop structure for error checking. Algorithm: The formula is: G=([2.6M – .2 ] +K +D+ [D/4] + [C/4] – 2C) mod 7 where: M: is the month number K: is the day of the month C: is the century number D: is the year number explanations: M: March is considered month 1 and February is considered month 12. Therefore, January and February are considered to be part of the previous year. C: Is the first two digits of the year D: Is the last two digits of the year G: If this value is less than 0, add a value of 7 to G You need to cast the following expression as an integer: [2.6 M – .2] examples: Month Day Year M K D 76 7 (not 8) 7 4 1776 2008 4 17 1 17 11 17 20
Suggested Logic: • Display a Title • Get the month from the user • Validate the month • Get the day from the user • Validate the day • Get the year from the user Calculate the day of the week o Convert M (month) to the correct value and change year is necessary o Convert the year to C and D o After setting up the values for M, K, C, and D, use Java operators to apply the formula o Get the value of G • Display the day of the week using a switch statement: o Gis the day of the week where: • 0 = Sunday • 3 = Wednesday • 6= Saturday 1 = Monday 4 = Thursday Any other value: Display an error message. 2 = Tuesday 5 = Friday • Display the number of entries made by the user You should do this project in small steps. Please do not try to do everything at once... Here is a possible plan: • Code and test the display of the Title Then, ask the user to enter the month. Set up the while loop with sentinel value (month != 0) Ask the user to enter the day and year • Add the counter • Display the counter\ After the above code works (make sure that the user can enter several set of data, and exit with month = 0) • Add the validations for month and day • Add the if and calculations statements for G • Display the value of G (once you got the value right, then delete this statement) • Display the corresponding day of the week.
Transcribed Image Text:Suggested Logic: • Display a Title • Get the month from the user • Validate the month • Get the day from the user • Validate the day • Get the year from the user Calculate the day of the week o Convert M (month) to the correct value and change year is necessary o Convert the year to C and D o After setting up the values for M, K, C, and D, use Java operators to apply the formula o Get the value of G • Display the day of the week using a switch statement: o Gis the day of the week where: • 0 = Sunday • 3 = Wednesday • 6= Saturday 1 = Monday 4 = Thursday Any other value: Display an error message. 2 = Tuesday 5 = Friday • Display the number of entries made by the user You should do this project in small steps. Please do not try to do everything at once... Here is a possible plan: • Code and test the display of the Title Then, ask the user to enter the month. Set up the while loop with sentinel value (month != 0) Ask the user to enter the day and year • Add the counter • Display the counter\ After the above code works (make sure that the user can enter several set of data, and exit with month = 0) • Add the validations for month and day • Add the if and calculations statements for G • Display the value of G (once you got the value right, then delete this statement) • Display the corresponding day of the week.
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