The owner of a venue for events needs software to keep track of reservations. The venue can handle two events in a day, one scheduled for the afternoon and another scheduled for the evening. Each event consists of the type (wedding, bar mitzvah, etc.), the date of the event, and whether or not the event will be held in the evening. A programmer writes the code given on the handout. Rewrite the above code so thatIt has all of the correct access modifiers for good encapsulation.Your code obeys the principle of encapsulation that obliges you to put each method in the proper class.Your code uses NO getters and NO additional classes or methods. You are welcome to modify any existing methods (including signatures and bodies) and/or move them between the existing classes.Your code DOES NOT modify any of the constructors.Important notes:You DO NOT have to write a main method.You DO NOT have to write tests.You DO NOT have to write Javadocs.You DO NOT have to write interfaces to encapsulate data structures.There should be no incorrect syntax or other compile-time errors.You are welcome to write your code elsewhere and then paste it into the box below.To make your code more readable, please select the "Preformatted" option from the toolbar, as shown in the following image: import java.util.LinkedList;class Event {String type;Date date;boolean isEvening;// wedding, etc.// true if the event is to be held in the eveningpublic Event(String type, Date date, boolean isEvening) {this.type = type;this.date = date;this.isEvening = isEvening;}}class Date {String month;int day;int year;public Date(String month, int day, int year) {this.month = month;this.day =this.year = year;day;}}class Reservations {LinkedList events;public Reservations() {this.events = new LinkedList();}// adds the given event to the events list, as long as there is no// date/time conflict with existing events in the list.// returns true if the event was added, false otherwiseboolean bookEvent(Event newEvent) {if (events.size()events.add(newEvent);return true;== 0) {// no other events, so no conflictselse {for (Event e: this.events) {if (hasConflict(newEvent, e))return false;// conflict found, event not added}events.add(newEvent);return true;// no conflicts, so add event}}// returns true if a conflictboolean hasConflict (Event e1, Event e2){return dateSame(e1.date, e2.date) && e1.isEveninge2.isEvening;}// returns true if both dates are the sameboolean dateSame(Date d1, Date d2) {return d1.month.equals(d2.month) && d1.dayd2.day && d1.yeard2.year;===3%D}}

Note:Modified program is given below. I have added instance variable as private and added getters…

Answered: a venue for events needs software to…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

The owner of a venue for events needs software to keep track of reservations. The venue can handle two events in a day, one scheduled for the afternoon and another scheduled for the evening. Each event consists of the type (wedding, bar mitzvah, etc.), the date of the event, and whether or not the event will be held in the evening. A programmer writes the code given on the handout.

Rewrite the above code so that

It has all of the correct access modifiers for good encapsulation.
Your code obeys the principle of encapsulation that obliges you to put each method in the proper class.
Your code uses NO getters and NO additional classes or methods. You are welcome to modify any existing methods (including signatures and bodies) and/or move them between the existing classes.
Your code DOES NOT modify any of the constructors.

Important notes:

You DO NOT have to write a main method.
You DO NOT have to write tests.
You DO NOT have to write Javadocs.
You DO NOT have to write interfaces to encapsulate data structures.
There should be no incorrect syntax or other compile-time errors.
You are welcome to write your code elsewhere and then paste it into the box below.
To make your code more readable, please select the "Preformatted" option from the toolbar, as shown in the following image:

import java.util.LinkedList;
class Event {
String type;
Date date;
boolean isEvening;
// wedding, etc.
// true if the event is to be held in the evening
public Event(String type, Date date, boolean isEvening) {
this.type = type;
this.date = date;
this.isEvening = isEvening;
}
}
class Date {
String month;
int day;
int year;
public Date(String month, int day, int year) {
this.month = month;
this.day =
this.year = year;
day;
}
}
class Reservations {
LinkedList<Event> events;
public Reservations() {
this.events = new LinkedList<Event>();
}
// adds the given event to the events list, as long as there is no
// date/time conflict with existing events in the list.
// returns true if the event was added, false otherwise
boolean bookEvent(Event newEvent) {
if (events.size()
events.add(newEvent);
return true;
== 0) {
// no other events, so no conflicts
else {
for (Event e: this.events) {
if (hasConflict(newEvent, e))
return false;
// conflict found, event not added
}
events.add(newEvent);
return true;
// no conflicts, so add event
}
}
// returns true if a conflict
boolean hasConflict (Event e1, Event e2){
return dateSame(e1.date, e2.date) && e1.isEvening
e2.isEvening;
}
// returns true if both dates are the same
boolean dateSame(Date d1, Date d2) {
return d1.month.equals(d2.month) && d1.day
d2.day && d1.year
d2.year;
==
=3%D
}
}

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