BIG JAVA: LATE OBJECTS
BIG JAVA: LATE OBJECTS
2nd Edition
ISBN: 9781119626220
Author: Horstmann
Publisher: WILEY
Question
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Chapter 12, Problem 7PP
Program Plan Intro

  To implement a program that simulates airplane system

Program plan:

  • In the file Seat.java”, create a class Seat”,
    • Declare the variable.
    • Define the constructor.
    • Define the method “addCost()” to add a charge to a seat.
    • Define the method “getCharges()” to get the charges for this seat.
  • In the file Airplane.java”, create a class Airplane”,
    • Initialize necessary variables.
    • Define the constructor to construct an Airplane object.
    • Define the method "addCharge()" to add the cost.
    • Define the method “getSeatingCharges()” to get a string displaying the charges per seat.
  • In the file AirplaneMenu.java”, import necessary packages, and create a class “AirplaneMenu”,
    • Declare a variable.
    • Define the constructor construct an “AirplaneMenu” object.
    • Define the method “run()” to run the system,
      • Create necessary array to hold snacks and drinks.
      • Execute loop if not done.
      • Prompt the user a command.
      • Convert to uppercase.
      • If the input command is equal to “O”,
        • Prompt and get the row number.
        • Prompt and get the seat number.
        • Get the snack item, and check if is first item,
          • Call the method “addCharge()”.
        • Get the drink item, and check if is first item,
          • Call the method “addCharge()”.
        • Check if drink is either second or third item,
          • Call the method “addCharge()”.
        • Check if row number is “<6”,
          • Increment the snack.
          • Increment the drink.
        • Otherwise,
          • Increment another snack array.
          • Increment another drink array.
      • Otherwise, check if the input command is equals to “S”,
        • Display the order.
      • Otherwise, check if the input command is equals to “Q”,
        • Quit the application.
            • Define the method “getSnack()” to get the snack item from the user.
            • Define the method “getDrinkk()” to get the drink item from the user.
  • In the file AirplaneOrderingSystem.java”, import necessary packages, and create a class AirplaneOrderingSystem”,
    • Define the method “main()”,
      • Create an object for “AirplaneMenu”.
      • Call the method “run()”.

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