Assignemnt #102 and 102nd program

Code

///Name: Derrick Andreasen
///Period: 7
///Program name: 102nd Program
///File name: Hund2prog.java
///Date Finished:3/29/2016

import java.util.Scanner;

public class Hund2prog
{
	public static void main( String[] args )
	{
        Scanner keyboard = new Scanner( System.in );
        int choice, keychain = 0, keyPrice = 10, add, subtract, keychainsInOrder = 0;
        
        System.out.println( "Ye old Keychain shoppe" );
        System.out.println();
        
        do
        {
            System.out.println( "1. Add keychains to order\n2. Remove Keychains from Order\n3. View current Order\n4. checkout" );
            System.out.print( "Please enter your choice: " );
            choice = keyboard. nextInt();
            System.out.println();
            
            if(choice == 1)
            {
                keychainsInOrder = addKeychains(keychainsInOrder);
                System.out.println( "You now have " + keychainsInOrder + " keychains." );
            }
            else if(choice == 2)
            {
                keychainsInOrder = removeKeychains(keychainsInOrder);
                System.out.println( "You now have " + keychainsInOrder + " keychains." );
            }
            else if(choice == 3)
            {
                String message = viewOrder(keychainsInOrder, keyPrice);
                System.out.println( message );
            }
            else
            {
                String check = checkout(keychainsInOrder, keyPrice);
                System.out.println( check );
            }
        }while (choice != 4);
    }
    
    public static int addKeychains(int keychain)
    {
        Scanner keyboard = new Scanner( System.in );
        String x = "ADD KEYCHAINS";
        int add;
        
        System.out.print( "You have " + keychain + " keychains. How many to add? " );
        add = keyboard.nextInt();
        
        keychain = keychain + add;
        return keychain;
    }
    
    public static int removeKeychains(int keychain)
    {
        Scanner keyboard = new Scanner( System.in );
        String x = "REMOVE KEYCHAINS";
        
        System.out.print( "You have " + keychain + " keychains. How many to remove? " );
        int subtract = keyboard.nextInt();
        
        keychain= keychain - subtract;
        return keychain;
    }
    
     public static String viewOrder(int keychain, int keyPrice)
    {
        String x = "VIEW ORDER" , message;
        
        message = "You have " + keychain + " keychain.\n Keychains cost $10 each. \nTotal cost is " + ( keyPrice * keychain );
        return message;
    }
    
     public static String checkout(int keychain, int keyPrice)
    {
        Scanner keyboard = new Scanner( System.in );
        String x = "CHECKOUT" , check, name;
        
        System.out.print( "What is your name? " );
        name = keyboard.next();
        
        check = "You have " + keychain + " keychain.\n Keychains cost $10 each. \nTotal cost is " + viewOrder(keychain, keyPrice) + "\n Thanks for your order, " + name + "!";
        return check;
    }
}
    
    

Picture of the output