Thread: Java Beginner: Simple Movie Ticket Program using Selection?

Hello everyone,

I'm a beginner at Java and have a question. I have an optional exercise I can do for uni to create a program and am stuck as to what to use to get the program to work. The question is asking me to do it using selection? I am pretty sure selection is like for sorting by a letter or something. Here is my code:

package movieprogram;
import java.util.Scanner;
 
public class MovieProgram {
 
 
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner scanner1 = new Scanner(System.in);
        System.out.println("What is your name?");
        String name1 = scanner1.next();
        System.out.println("What is your mobile number?");
        int number = scanner1.nextInt();
        System.out.println("What is your age?");
        int age = scanner1.nextInt();
        System.out.println("What is the name of the movie?");
        String movie = scanner1.next();
        Scanner scanner2 = new Scanner(System.in);
        System.out.println("What is the time of the movie");
        int time = scanner2.nextInt();
 
        int ticketPrice = 20;
 
        if (age < 18)
            ticketPrice = 20/2;
        System.out.println("You are under 18 so you get 50% off!" + "Your price is: " + ticketPrice);
        else if (age >= 18 && age <= 65)
            ticketPrice = 20;
                System.out.println("Your price is " + ticketPrice);
        else if (age > 65)
            ticketPrice = 15;
                    System.out.println("You are over 65. Your price is: " + ticketPrice);
    }
 
}

The question is
1. MOVIE TICKETS: Describe the process of booking a movie ticket. The user must be asked for their name, mobile number and age. The user will be asked to provide a movie name and time. If the user is under 18, the movie ticket price is halved ($10). If the user is between 18 and 65, the movie ticket is normal ($20), if the user is over 65, the movie ticket is three quarters of the normal price ($15).

Originally Posted by Norm

I don't know what that means.
Can you get a definition for what "selection" means?
You need that to be able to design and write the code.

Selection as in using a switch statement but I'm unsure how it would answer the question as it uses three conditions not one. It's just an example it can be done anyway I would like my teacher says.

Originally Posted by Norm

Ok, then would the use of if/else if statements the code uses satisfy that requirement?

Note: The code should use {}s following each if and else statement to surround the code that is included.

Yes it would. My code gives an error for some reason though

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package movieprogram;
import java.util.Scanner;
 
/**
 *
 * @author stefansandoval
 */
public class MovieProgram {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner scanner1 = new Scanner(System.in);
        System.out.println("What is your name?");
        String name1 = scanner1.next();
        System.out.println("What is your mobile number?");
        int number = scanner1.nextInt();
        System.out.println("What is your age?");
        int age = scanner1.nextInt();
        System.out.println("What is the name of the movie?");
        String movie = scanner1.next();
        Scanner scanner2 = new Scanner(System.in);
        System.out.println("What is the time of the movie");
        int time = scanner2.nextInt();
 
        int ticketPrice = 20;
 
        if (age < 18) {
            ticketPrice = 20/2;
        System.out.println("You are under 18 so you get 50% off!" + "Your price is: " + ticketPrice);
        } else if (age >= 18 && age <= 65) {
            ticketPrice = 20;
                System.out.println("Your price is " + ticketPrice);
        } else if (age > 65)
            ticketPrice = 15;
                    System.out.println("You are over 65. Your price is: " + ticketPrice);
    }
 
}

Here is my output:
run:
What is your name?
BaldEagle
What is your mobile number?
0439291281
What is your age?
22
What is the name of the movie?
Batman
What is the time of the movie
8
Your price is 20
You are over 65. Your price is: 20


So the problem now is that it tells me that my price is 20 as well as that I am over 65 and my price is 20. If I put an else instead of an else if on line 41 it says underlines it in red and says "not a statement. ';' expected"

Originally Posted by Norm

Did you see this from post#4?

Yes I did. It was missing the curly brackets in a few places. It works now thanks

Ok. Now I'd like to create a boolean IsVIP that discounts the ticketPrice which is 20 by 20%. I created these lines of code

System.out.println("Are you a VIP?");
Boolean isVIP = scanner2.nextBoolean();
 
       int ticketPrice = 20;
 
 
    if (age < 18) {
        ticketPrice = 20/2;
System.out.println("Your price is " + ticketPrice);
} else if (age >= 18 && age <= 65) {
System.out.println("Your price is " + ticketPrice);
} else if (age > 65) {
    ticketPrice = 15;
System.out.println("Your price is " + ticketPrice);
} else if (isVIP) {
    ticketPrice = ticketPrice - (0.2 * 20);
}

For that last line it gives the error "incompatible types: possible lossy conversion from double to int." Putting the ticketPrice as just 16 doesn't work it just uses the original price. I'm stuck as to how to fix this problem.

--- Update ---

Fixed the error now there is a problem with my curly brackets. On the last bracket it says reached end of file while parsing?

    if (age < 18) {
        ticketPrice = 20/2;
    System.out.println("Your price is " + ticketPrice);
    } else if (age >= 18 && age <= 65) {
    System.out.println("Your price is " + ticketPrice);
    } else if (age > 65) {
    ticketPrice = 15;
    System.out.println("Your price is " + ticketPrice);
    } else if (isVIP) {
    ticketPrice = (int)(20*(0.2/100.0f));
    }

--- Update ---

Added two more curly brackets on the end and the error disappeared. Now it still keeps the same price 20 for ticketPrice for isVIP when I run the program

Fixed the problem Program is complete now!