Chapter 9, Problem 7PP

Program Plan Intro

Appointment class

Program plan:

Filename: “Daily.java”

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

• Define a class “Daily”.
  • Define a constructor “Daily ()”.
    • Set the value “description”.
  • Define the method “occursOn()”.
    • Return “true”.

Filename: “Appointment.java”

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

• Define a class “Appointment”.
  • Declare a string “description”.
  • Define a constructor “Appointment()”.
    • Set the value “description”.
  • Define the method “setDescription()”.
    • Set the value “description”.
  • Declare the method “occursOn()”.
  • Define the method “toString()”.
    • Return the value of “description”.

Filename: “AppointmentTester.java”

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

• Define a class “AppointmentTester”.
  • Define the “main” method.
    • Print the message on the screen.
    • Check super class of “Appoinment” is “Daily”.
    • Print the expected result.
    • Print the message.
    • If “Daily” has no extra fields, print true,
    • Print the expected result.
    • Create a new appointment object “obj”.
    • Print “obj”.
    • Print the expected value of “obj”.
    • Call the method “occursOn()”.
    • Print the expected result.