Chapter 12, Problem 6PP

Program Plan Intro

Airline Seating

Program plan:

Filename: “SeatRow.java”

This code snippet creates a class “SeatRow”. In the code,

• Define a class “SeatRow”.
  • Define the class members.
  • Define the constructor “SeatRow”.
    • Set the value of “occupied”.
  • Define the method “addpassengers()”.
    • If the condition is true,
      • Return “false”.
        • If “npassenger” is greater than 3,
        • • Return false.
        • If “npassenger” is equal to 3 and “where” equal to “CENTER”.
        • • Set the value of “where” equal to “WINDOW”.
        • If the value of “where” equal to “WINDOW”,
        • • Return the value.
        • Else if the value of “where” equal to “AISLE”,
        • • Return the value.
        • Else if the value of “where” equal to “CENTER”,
        • • Return the value.
        • Else,
        • • Return false.
  • Define the method “add()”,
    • Iterate a “for” loop,
      • If the condition is true,
        • Return “false”.
    • Iterate a “for” loop,
      • Set “occupied[i]” equal to “true”.
    • Return “true”.
  • Define a method “toString()”.
    • Declare a variable “r” and set “[” to it.
    • Iterate a “for” loop,
      • If true,
        • Add “*” to “r”.
        • • • Else,
              • Add “.” To “r”.
            • If the condition is true,
              • Set space to “r”.
    • Add “]” to “r”.
    • Return the value of “r”.

Filename: “SeatTester.java”

This code snippet creates a class “SeatTester”. In the code,

• Define a class “SeatTester”.
  • Define the “main” method.
    • Define the object of “SeatRow”.
    • Print the “seats”.
    • Print the expected result.
    • Add the passengers using method “add()” and print the result.
    • Print the expected result.
    • Print the “seats”.
    • Print the expected result.
    • Add the passengers using method “add()” and print the result.
    • Print the expected result.
    • Print the “seats”.
    • Print the expected result.
    • Add the passengers using method “add()” and print the result.
    • Print the expected result.
    • Print the “seats”.
    • Print the expected result.
    • Add the passengers using method “add()” and print the result.
    • Print the expected result.
    • Define the object of “SeatRow”.
    • Print the “seats”.
    • Print the expected result.