A customer in a store is purchasing n items. Write a JavaFX application that asks for the price of each item,  then displays the subtotal of the sale, the amount of sales tax, and the total. Assume the sales tax  is 7 percent (to be set up using a named constant). Your application is to consist of multiple methods, including the following: A value-returning method to return a valid value for n  Have the user enter a value for n, a positive integer.  As long as the entered value is less than 1, then have the user try again.  Once a valid value for n is entered, return it to the calling method A value-returning method to compute the subtotal of the sale Set up a loop to compute the subtotal of the sale , using the value of n that is received through a parameter Return the subtotal of the sale value to the calling method A value-returning method to compute the  amount of sales tax The method is to receive the subtotal of the sale value through a parameter Return the computed sales tax value to the calling method A value-returning method to compute the  total amount for the transaction The method is to receive the subtotal of the sale value and the sales tax value through parameters Return the computed total amount value to the calling method A main() method, where the above methods are called

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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A customer in a store is purchasing n items. Write a JavaFX application that asks for the price of each item,  then displays the subtotal of the sale, the amount of sales tax, and the total. Assume the sales tax  is 7 percent (to be set up using a named constant).

Your application is to consist of multiple methods, including the following:

  • A value-returning method to return a valid value for n 
    • Have the user enter a value for n, a positive integer.  As long as the entered value is less than 1, then have the user try again.  Once a valid value for n is entered, return it to the calling method
  • A value-returning method to compute the subtotal of the sale
    • Set up a loop to compute the subtotal of the sale , using the value of n that is received through a parameter
    • Return the subtotal of the sale value to the calling method
  • A value-returning method to compute the  amount of sales tax
    • The method is to receive the subtotal of the sale value through a parameter
    • Return the computed sales tax value to the calling method
  • A value-returning method to compute the  total amount for the transaction
    • The method is to receive the subtotal of the sale value and the sales tax value through parameters
    • Return the computed total amount value to the calling method
  • A main() method, where the above methods are called 
  •  
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