Assignment #102 Keychains for Sale, for real this time

Code

    /// Name: John Huh
    /// Period: 6
    /// Program Name: Keychains for Sale, for real this time
    /// File Name: KeychainsForSale2.java
    /// Date Finished: 3/24/2016
    
    import java.util.Scanner;
    
    public class KeychainsForSale2
    {
    	public static void main( String[] args )
    	{
            Scanner keyboard = new Scanner(System.in);
            int keychains, choice, cost;
            String name;
            
            choice = 0;
            keychains = 0;
            cost = 10;
            
            System.out.println();
            System.out.println( "Ye Olde Keychain Shoppe" );
            
            while ( choice != 4 )
            {
                System.out.println();
                System.out.println( "1. Add Keychains to Order" );
                System.out.println( "2. Remove Keychains from Order" );
                System.out.println( "3. View Current Order" );
                System.out.println( "4. Checkout" );
                System.out.println();
                System.out.print( "Please enter your choice: " );
                choice = keyboard.nextInt();
                System.out.println();
                
                if ( choice == 1 )
                {
                    keychains = addKeychains( keychains );
                }
                
                else if ( choice == 2 )
                {
                    keychains = removeKeychains( keychains );
                }
                
                else if ( choice == 3 )
                {
                    viewOrder( keychains, cost );
                }
                
                else if ( choice == 4 )
                {
                    checkout( keychains, cost );
                }
                else
                {
                    System.out.println( "Error, please select an option" );
                }
            }
            System.out.println();
        }
        
        public static int addKeychains( int keychains )
    	{
            int add, total;
            Scanner keyboard = new Scanner(System.in);
    		System.out.print( "You have " + keychains + " keychains.  How many to add? " );
            add = keyboard.nextInt();
            total = keychains + add;
            System.out.println( "You now have " + total + " keychains." );
            return total;
    	}
        
        public static int removeKeychains( int keychains )
    	{
            int remove, total;
            Scanner keyboard = new Scanner(System.in);
    		System.out.print( "You have " + keychains + " keychains.  How many to remove? " );
            remove = keyboard.nextInt();
            total = keychains - remove;
            System.out.println( "You now have " + total + " keychains." );
            return total;
    	}
        
        public static void viewOrder( int keychains, int cost )
    	{
            int total;
            Scanner keyboard = new Scanner(System.in);
    		System.out.println( "You have " + keychains + " keychains." );
            System.out.println( "Keychains cost $10 each." );
            total = cost*keychains;
            System.out.println( "Total cost is $" + total + "." );
    	}
        
        public static void checkout( int keychains, int cost )
    	{
            int total;
            String name;
            Scanner keyboard = new Scanner(System.in);
    		System.out.println( "CHECKOUT" );
            System.out.println();
            System.out.print( "What is your name? " );
            name = keyboard.next();
            System.out.println( "You have " + keychains + " keychains." );
            System.out.println( "Keychains cost $10 each." );
            total = cost*keychains;
            System.out.println( "Total cost is $" + total + "." );
            System.out.println( "Thank you for your order, " + name + "!" );
    	}
    }
    

Picture of the output