Implement a superclass Appointment and subclasses oneTime, Daily, and Monthly. A
ID: 3699070 • Letter: I
Question
Implement a superclass Appointment and subclasses oneTime, Daily, and Monthly. An appointment has a description (for example "see the dentist") and a date. Write a method occurson(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill an array of Apointment objects with a mixture of appointments. Have the user enter date and print out all appointments that occurs on that date. Also, provide a tester class, AppintmentTester, for the above classes, in which create various types of appointments and test the expected outputs.Explanation / Answer
Please find my implementation in Java.
//Appointment.java
// import the java package
import java.util.ArrayList;
// Create a class of Appointment
/**
A class to keep track of an appointment.
*/
public abstract class Appointment
{
// Declare the description variable
protected String description;
// declare the variable day, month , year
protected int day, month, year;
/**
Constructs an appointment without a description.
*/
public Appointment(String desc, int Day, int Month, int Year)
{
// variables
description = desc;
day = Day;
month = Month;
year = Year;
}
// to get the description
public String getDescription()
{
return description;
}
/**
Sets the description of this appointment.
@param description the text description of the appointment
*/
public void setDescription(String description)
{
this.description = description;
}
// get the day method
public int getDay()
{
return day;
}
// set the day
public void setDay(int day)
{
this.day = day;
}
// get month method
public int getMonth()
{
return month;
}
// setMonth method
public void setMonth(int month) {
this.month = month;
}
// getyear method
public int getYear()
{
return year;
}
// setYear method
public void setYear(int year)
{
this.year = year;
}
/**
Determines if this appointment occurs on the given date.
@param year the year
@param month the month
@param day the day
@return true if the appointment occurs on the given date.
*/
public boolean occursOn(int day, int month, int year)
{
// check out the condition
if(getDay() == day && getMonth() == month && getYear() == year)
return true;
else
return false;
}
// convert string into string for appointment
public String toString()
{
// return the description
return description +" on "+ day +"/"+month+"/" +year ;
}
}
//AppointmentInheritance.java
// import the java package
import java.util.ArrayList;
/**
Demonstration of the appointment classes
*/
public class AppointmentInheritance
{
//Define an array of Appointments here (globally)
ArrayList<Appointment> appointments;
// constructor of Appointments
public AppointmentInheritance()
{
// create a array list c=to contain appointment
appointments = new ArrayList<Appointment>();
}
// make appointment method
public void makeAppointment(Appointment a)
{
appointments.add(a);
}
// create a method of check appointments
public void checkAppointments()
{
for(Appointment a : appointments)
System.out.println(a.toString());
}
// a method to display all the appointments
public void show(int day, int month, int year)
{
// appointment
for(Appointment a : appointments)
if(a.occursOn(day, month, year))
System.out.println(a.toString());
}
}
//TestAppointment.java
// import the required package
import java.util.Scanner;
// Create the class of TestAppointment
public class TestAppointment
{
// create a main method
public static void main(String[] args)
{
// create an object of AppointmentInheritance
AppointmentInheritance myAppts = new AppointmentInheritance();
// declare the already exist data into appointment book
myAppts.makeAppointment(new Monthly("Visit grandma",10,12,2018));
myAppts.makeAppointment(new Daily("Brush your teeth",18,10,2017));
myAppts. makeAppointment(new OneTime("Dentist appointment", 19, 11, 2017));
System.out.println("********The appointments in the book are***** ");
myAppts.checkAppointments();
// scan the scanner
Scanner scanner = new Scanner(System.in);
// declare the string
String ans, desc;
// declare the variable
int type, day, month, year;
// appointment
Appointment app;
// checkout the condition by the while loop
while(true)
{
// ask from the user
System.out.println("Please press yes/no to add "
+ "an appointment? y/n: ");
ans = scanner.next();
// when yes
if(!ans.equalsIgnoreCase("y"))
break;
else
{
while(true)
{
//
System.out.println("1. One time Appointment");
System.out.println("2. Daily Appointment");
System.out.println("3. Monthly Appointment");
System.out.println("Please make a selection of "
+ "appointment type: ");
type = scanner.nextInt();
// when choice is not between 1 and 3
if(type>=1 && type<=3)
break;
}
// new line
scanner.nextLine();
// Ask from the user to enter day, month, year
System.out.println("Enter the description: ");
desc = scanner.nextLine();
System.out.println("Enter the day: ");
day = scanner.nextInt();
System.out.println("Enter the month: ");
month = scanner.nextInt();
System.out.println("Enter the year: ");
year = scanner.nextInt();
if(type == 1)
app = new OneTime(desc, day, month, year);
else if(type == 2)
app = new Daily(desc, day, month, year);
else
app = new Monthly(desc, day, month, year);
myAppts.makeAppointment(app);
}
}
// display the message for prompt the input by user.
System.out.println(" *****The appointments in the book are**** ");
myAppts.checkAppointments();
System.out.println(" Enter date to show appointments for the date");
System.out.println("Enter the day: ");
day = scanner.nextInt();
System.out.println("Enter the month: ");
month = scanner.nextInt();
System.out.println("Enter the year: ");
year = scanner.nextInt();
myAppts.show(day, month, year);
}
}
// Daily.java
/**
Daily appointment.
*/
// class Daily
public class Daily extends Appointment
{
/**
Constructs a Daily Appointment
@param description the text description of the appointment
*/
public Daily(String desc, int day, int month, int year) {
super(desc, day, month, year);
}
/**
Determines if this appointment occurs on the given date.
@param year the year
@param month the month
@param day the day
@return true if the appointment occurs on the given date.
*/
public boolean occursOn(int day, int month, int year)
{
return true;
//this is the polymorphic method that will return true always,
//since this is a daily appt.
}
/**
Converts appointment to string description.
*/
public String toString()
{
return "[Daily] "+description;
}
}
//Monthly.java
/**
Monthly appointment.
*/
// create a class Monthly
public class Monthly extends Appointment
{
/**
Initializes appointment for a given date.
@param day the day of the month
@param description the text description of the appointment
*/
// constructor of monthly
public Monthly(String desc, int day, int month, int year)
{
super(desc, day, month, year);
//call the superclass method to initialize description
//initialize the day instance variable
}
/**
Determines if this appointment occurs on the given date.
@param year the year
@param month the month
@param day the day
@return true if the appointment occurs on the given date.
*/
public boolean occursOn(int day, int month, int year)
{
if(getDay() == day)
return true;
else
return false;
//will return true if the day passed in the parameter
//matches the day instance variable
}
/**
Converts appointment to string description.
*/
public String toString()
{
// return the string
return "[Monthly] "+ description + " on day "+day+" of the month";
}
}
//Onetime.java
/**
A onetime appointment.
*/
// create a class of OneTime
public class OneTime extends Appointment
{
/**
Initializes appointment for a given date.
@param year the year
@param month the month
@param day the day
@param description the text description of the appointment
*/
// constructor
public OneTime(String desc, int day, int month, int year)
{
//initialize description by calling a superclass method
//initialize all the instance variables with the
//parameters passed to this constructor
super(desc, day, month, year);
}
/**
Converts appointment to string description.
*/
public String toString()
{
return "[OneTime] "+super.toString();
}
}
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