Chapter 12, Problem 2PP

Program Plan Intro

Appointment Calendar

Program plan:

Filename: “AppoinmentTime.java”

This program file is used to define a class “AppoinmentTime”. In the code,

• Import the required packages.
• Define a class “AppoinmentTime”.
  • Define the class members “minutes”, “hours” and “BAD_TIME”.
  • Define a constructor “AppoinmentTime()”.
    • Define the object of “Scanner” class.
    • Get the delimiter.
    • Define the “try” block.
      • Get the values of “hours” and “minutes”.
      • If the “hours” is less than 0 or greater than 23,
        • Throw a runtime exception.
      • If the “minutes” is less than 0 or greater than 59,
        • Throw a runtime exception.
    • Define a “catch” exception.
      • Set “hours” equal to “-1”.
      • Set “minutes” equal to “-1”.
  • Define the method “equals()”.
    • If the condition is true,
      • Return false.
    • Define “b” of class “AppoinmentTime”.
    • Return the result of expression.
  • Define the method “toString()”.
    • Return the time in string format.

Filename: “AppointmentDate.java”

This program file is used to define a class “AppoinmentDate”. In the code,

• Import the required packages.
• Define a class “AppoinmentDate”.
  • Define the class members “year”, “month”, “day”, “DAYS” and “BAD_DATE”.
  • Define a constructor “AppoinmentDate ()”.
    • Define the object of “Scanner” class.
    • Get the delimiter.
    • Define the “try” block.
      • Get the values of “year”, “month” and “day”.
      • If the “month” is less than 1 or greater than 12,
        • Throw a runtime exception.
      • If “day” is less than 1,
        • Throw a runtime exception.
      • If the condition “day>DAYS[month-1]”,
        • Throw a runtime exception.
      • If the “month” greater than 2 and “year” is not a leap year and the “days” are greater than 28,
        • Throw a runtime exception.
    • Define a “catch” exception.
      • Set “year” equal to “-1”.
      • Set “month” equal to “-1”.
      • Set “day” equal to “-1”.
  • Define the method “equals()”.
    • If the condition is true,
      • Return false.
    • Define “b” of class “AppoinmentDate”.
    • Return the Boolean result of expression.
  • Define the method “toString()”.
    • Return the date in string format.
  • Define the method “isLeapYear()”.
    • Check the condition and return the result.

Filename: “AppointmentDateTimeTester.java”

This program file is used to define a class “AppointmentDateTimeTester”. In the code,

• Define a class “AppointmentDateTimeTester”.
  • Define a method “main()”.
    • Print the statement.
    • Define the object of “AppoinmentDate”.
    • Check the good date “2016/3/15”.
    • Print the expected value.
    • Check another date “Jan 15, 2016”.
    • Check the bad format.
    • Print the expected bad date.
    • Print the invalid format.
    • Print the expected result.
    • Check the equality.
    • Print the expected result.
    • Check with new date “2016/02/30”.
    • Check the invalid date.
    • Print the expected result.
    • Assign “d” equal to “2016/02/02”.
    • Assign “d2” equal to “2016/02/02”.
    • Check the equality of “d” and “d2”.
    • Print the expected value.
    • Check whether “d” equals “null”.
    • Print the expected value.
    • Check whether “d” equals “2016/02/02”.
    • Print the expected value.
    • Print a new line.
    • Print the statement.
    • Assign “t1” equal to “8:15”.
    • Check the good time.
    • Print the expected result.
    • Assign “t1” equal to “7:05”.
    • Check the good time.
    • Print the expected result.
    • Checking the invalid format.
    • Print the invalid time format.
    • Assign “t1” equal to “7:60”.
    • Check the bad time.
    • Print the expected value.
    • Assign “t1” equal to “24:05”.
    • Checking the bad time.
    • Print the expected value.
    • Assign “t1” equal to “8:15”.
    • Check the equality.
    • Print the expected result.
    • Check whether “t1” is equal to “null”.
    • Print the expected value.
    • Check the equality.
    • Print the expected value.