Chapter 4, Problem 27PC

Program Plan Intro

Mobile Service Provider, Part 3

Program Plan:

• Include required header files.
• Declare a main function “main ()”. Inside this function,
  • Declare required constant variables.
  • Declare required variables “ch”, “minutes”, “max_Minutes”, “PackageCostA”, “PackageCostB”, “PackageCostC”, “addMinsA”, “addMinsB”, “addMinsC”, “addChargesA”, “addChargesB”, “addChargesC”, “totalCostA”, “totalCostB”, “totalCostC”, “savings_A”, “savings_B”, “savings_C”, “month”, “is_ValidMonth”.
  • Get a month from the user and store it in a variable “month”.
  • Check if the month is valid,
    • If the condition is true, set the months’ maximum minutes.
    • Else, assign “false” to “is_ValidMonth”
  • Check if the Boolean variable “is_ValidMonth” is true,
    • If the condition is true,
      • Print the packages as menu.
      • Get a choice from the user.
      • Switch to choice.
        • For the cases “PACKAGE_A_CH”, “PACKAGE_B_CH”, and “PACKAGE_C_CH”; Get the number of minutes from the user and store it in a variable “minutes”.
        • Check if the minutes are valid.
          • Set the packages’ cost
          • Calculate additional minutes.
          • Check if additional minutes for A is less than or equal to 0.  If the condition is true then assign 0 to “addMinsA”.
          • Check if additional minutes for B is less than or equal to 0.  If the condition is true then assign 0 to “addMinsB”.
          • Check if additional minutes for C is less than or equal to 0.  If the condition is true then assign 0 to “addMinsC”.
          • Find additional charges for A, B and C
          • Find total cost for A, B and C
          • Check if the choice is equal to “A”. If the condition is true then print the total due amount. Find the savings of “B” and print it. Find the savings of “C” and print it on the screen.
          • Check if the choice is equal to “B”. If the condition is true then print the total due amount. Find the savings of “A” and print it. Find the savings of “C” and print it on the screen.
          • If the choice is equal to “C”. If the condition is true then print the total due amount. Find the savings of “A” and print it. Find the savings of “B” and print it on the screen.
        • Else, print the error message.
        • Break the statement.
          • For the case “QUIT_CHOICE”.
            • Break the statement.
  • If the month is not valid then, print the error message.