Java Programming edition 8, Chapter 4 case problem p.243-244 1a-b Carlys Project

Question

Java Programming edition 8, Chapter 4 case problem p.243-244 1a-b Carlys Project build from original.                                                                                                     1a. carlys catering provides meals for parties and special events. In Chapter 3, you created an Event class for the company. The Event class contains two public final static fields that hold tghe price per guest ($35.00) and the cutoff value for a large event (50 guests), and three private fields that hold an event number, number of guests for the event, and the price. It also contains two public set methods and three public get methods. Now modify the Event class to contain two overloaded constructors.                                                                                                                                                                                                                                                          Once constructor accepts an event number and number of guests as parameters. Pass these values to the setEventNumber() and setGuests() methods, respectively. The setGuests() method will automatically calculate the event price.                                                                                                                                                              The other constructor is a default constructor that passes "A000" and 0 to the two-parameter constructor. Save the file as Event.java.                                                                                                                                                                                                                                                        1b. In chapter 3, you also created an EventDemo class to demonstrate using two Event objects. Now modify that class to instantiate two Event objects, and include the following new methods in the class: Instantiate one object to retain the constructor default values.  Accept user data for the event number and guest fields, and use this data set to instantiate the second object. Display all the details for both objects. Save file as EventDemo.java.

Explanation / Answer

Event.java
-----------------
package chegg;
public class Event {
   public static final int tghe = 35;
   public static final int cutoff = 50;
   private String eventNumber;
   private int numberOfGuestforEvent;
   private int price;
   public Event() {
       this("A000", 0);
   }
   public Event(String eventNumber, int numberOfGuestforEvent) {
       super();
       this.eventNumber = eventNumber;
       this.numberOfGuestforEvent = numberOfGuestforEvent;
       this.setPrice(this.numberOfGuestforEvent * cutoff);
   }
   public String getEventNumber() {
       return eventNumber;
   }
   public void setEventNumber(String eventNumber) {
       this.eventNumber = eventNumber;
   }
   public int getNumberOfGuestforEvent() {
       return numberOfGuestforEvent;
   }
   public void setNumberOfGuestforEvent(int numberOfGuestforEvent) {
       this.numberOfGuestforEvent = numberOfGuestforEvent;
   }
   public int getPrice() {
       return price;
   }
   public void setPrice(int price) {
       this.price = price;
   }
   @Override
   public String toString() {
       return "Event [eventNumber=" + eventNumber + ", numberOfGuestforEvent="
               + numberOfGuestforEvent + ", price=" + price + "]";
   }
}

EventDemo.java
-----------------------
package EventDemo;
import java.util.Scanner;
import chegg.Event;
public class EventDemo {
   public static void main(String[] args) {
       Event event1 = new Event();
       @SuppressWarnings("resource")
       Scanner scanner = new Scanner(System.in);
       System.out.println("Kindly enter event number ");
       String eventNumber = scanner.next();
       System.out.println("Kindly enter number of guest ");
       int eventGuestCount = scanner.nextInt();
       Event event2 = new Event(eventNumber, eventGuestCount);
       System.out.println(event1);
       System.out.println(event2);
   }
}

output
-------------
Kindly enter event number
B101
Kindly enter number of guest
12
Event [eventNumber=A000, numberOfGuestforEvent=0, price=0]
Event [eventNumber=B101, numberOfGuestforEvent=12, price=600]

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