Java Programming (MindTap Course List)
Java Programming (MindTap Course List)
8th Edition
ISBN: 9781285856919
Author: Joyce Farrell
Publisher: Cengage Learning
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Chapter 3, Problem 1CP

Explanation of Solution

a.

CarlysEventPriceWithMethods.java

//import the required packages

import java.util.Scanner;

//define a method CarlysEventPriceWithMethods

public class CarlysEventPriceWithMethods

{

//Scanner object

private static Scanner sc = new Scanner(System.in);

//define a method getEventNum()

public static String getEventNum()

{

//print the statement

System.out.println("Enter event number: ");

//scan the values

return sc.next();

}

//define the method getNoGuests

public static int getNoOfGuests()

{

//print the statement

System.out.println("Enter no of guests: ");

//return the value scanned

return sc.nextInt();

}

//define the method displayMotto()

public static void displayMotto(Event e)

{

//prin the values

System.out.println(String.format("%26s", " ").replace(" ", "*"));

System.out.printf("* %22s *", " ");

System.out.println("\n* Carly’s Catering *");

System.out.printf("* %22s *\n", " ");

System.out.println(String.format("%26s", " ").replace(" ", "*"));

System.out.println("Event No: " + e.getEventNum());

System.out.println("No. of guests:" + e.getNoOfGuest());

System.out.println("Price per guest: $" + Event.PRICE_PER_GUEST);

//call the method computePrice

computePrice(e);

}

//define the method computePrice

public static void computePrice(Event e)

{

//print the values

System.out.println("Price: $" + e.getPrice());

System.out.println("Large event: " + ((e.getNoOfGuest() > Event.CUT_OFF) ? "Yes" : "No"));

}

//define the main method

public static void main(String[] args)

{

//Close scanner

sc.close();

}

}

Explanation:

The above snippet of code is used to create a class “CarlysEventPriceWithMethods”. In the code,

  • Import the required header files.
  • Define a class “CarlysEventPriceWithMethods”
    • Declare the object of “Scanner” class.
    • Define the “getEventNum()” method.
      • Prompt the user to enter the event number.
      • Return the value of “name”.
    • Define the “getNoGuests()” method.
      • Return the scanned value.
    • Define the “displayMotto()” method.
      • Print the values.
      • Call the method “computePrice()”.
    • Define the “computePrice()” method.
      • Print the values.
    • Define the “main()” method.
      • Close the scanner.

b.

Event.java

//define a class Event

public class Event

{

//declare the class members

public final static int PRICE_PER_GUEST = 35;

public final static int CUT_OFF = 50;

private String eventNum;

private int noOfGuest;

private int price;

//define a method setEventNum()

public void setEventNum(String eventNum)

{

//set the value of eventNum

this.eventNum = eventNum;

}

//define a method setNoOfGuest()

public void setNoOfGuest(int noOfGuest)

{

//set the values of noOfGuest

this.noOfGuest = noOfGuest;

//set the values of price

this...

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