Assignemnt #102: Keychains for Sale, for real this time

Code

    /// Name: Kelsey Lieberman
    /// Period 5
    /// Program Name: KeychainsForSaleForReal
    /// File Name: KeychainsForSaleForReal.java
    /// Date Finished: 2/1/2016
    
import java.util.Scanner;

public class KeychainsForSaleForReal
{
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        
        int choice, end = 0, price = 10, numChainz = 0;
        
        do
        {
            System.out.println("\nYe Olde Keychain Shoppe\n\n1. Add Keychains to Order\n2. Remove Keychains from Order\n3. View Current Order\n4. Checkout");
            System.out.print("\nPlease Enter Your Choice (1-4): ");
            choice = keyboard.nextInt();
        
            if (choice == 1 )
                numChainz = addKeychains(numChainz);
            if (choice == 2 )
                numChainz = removeKeychains(numChainz);
            if (choice == 3 )
                viewOrder(numChainz, price);
            if (choice == 4 )
            {
                checkout(numChainz, price);
                end = 1;
            }
        }while (end != 1 );
    }

    public static int addKeychains(int numChainz)
    {
        Scanner keyboard = new Scanner(System.in);
        
        int add;
        
        System.out.println("\nADD KEYCHAINS...");
        System.out.print("You have " + numChainz + " keychains. How many keychains do you want to add? ");
        add = keyboard.nextInt();
        numChainz = numChainz + add;
        System.out.println("You now have " + numChainz + " keychains.");
        
        return numChainz;
    }
    
    public static int removeKeychains(int numChainz)
    {
        Scanner keyboard = new Scanner(System.in);
        
        int remove;
        
        System.out.println("\nREMOVE KEYCHAINS");
        System.out.println("You have " + numChainz + " keychains.");
         if (numChainz != 0 )
        {
            System.out.print("How many keychains do you want to remove? ");
            remove = keyboard.nextInt();
            numChainz = numChainz - remove;
            System.out.println("You now have " + numChainz + " keychains.");
        }
        
        return numChainz;
    }
    
    public static String viewOrder(int numChainz, int price)
    {
        System.out.println("\nVIEW ORDER");
        System.out.println("You have " + numChainz + " keychains.");
        System.out.println("Keychains cost $" + price + " each.");
        System.out.println("Total cost is $" + (numChainz * price) + ".");
        
        return "";
    }
    
    public static String checkout(int numChainz, int price)
    {
        Scanner keyboard = new Scanner(System.in);
        
        String name;
        
        System.out.println("\nCHECKOUT");
        System.out.print("What is your name? ");
        name = keyboard.next();
        System.out.println("You have " + numChainz + " keychains.");
        System.out.println("Keychains cost $" + price + " each.");
        System.out.println("Total cost is $" + (numChainz * price) + ".");
        System.out.println("\nThank you for visiting Ye Olde Keychain Shoppe, " + name + "!\n");
        
        return "";
    }
}
   
    

Picture of the output