Assignemnt #102 and Real Keychain Store

Code

    ///Name: Daniel Tiffany-Appleton
    ///Period: 7
    ///Program Name: Real Keychain Store
    ///File Name: RealKeychainStore
    ///Date Finished: 3/8/16
    
    import java.util.Scanner;
    
    public class RealKeychainStore
    {
        public static void main( String args[] )
        {
            Scanner keyboard = new Scanner(System.in);
            int choice, keychains, cost;
            String name;
            
            System.out.println("Ye Olde Keychain Shoppe");
            System.out.println(" ");
            choice = 0;
            keychains = 0;
            cost = 0;
            name = "bob";
            
            do 
            {
                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();
                
                if( choice == 1 )
                {
                    keychains = addKeychains(keychains);
                    System.out.println("You now have " + keychains + " keychains.");
                    System.out.println(" ");
                }
                
                else if ( choice == 2 )
                {
                    keychains = removeKeychains(keychains);
                    System.out.println("You now have " + keychains + " keychains.");
                    System.out.println(" ");
                }
                
                else if ( choice == 3 )
                {
                    cost = viewOrder(keychains);
                    System.out.println("Total cost is $" + cost + ".");
                    System.out.println(" ");
                }
                
                else if ( choice == 4 )
                {
                    name = checkout(keychains, cost);
                    System.out.println("Thanks for your order, " + name + "!");
                }
                
                else 
                {
                    System.out.println("Not a choice.");
                }
                
                
                
            }while( choice != 4 );
            
        }
        
        public static int addKeychains(int keychains)
        {
            Scanner keyboard = new Scanner(System.in);
            
            int add;
            System.out.println(" ");
            System.out.print("You have " + keychains + " keychains. How many to add? ");
            add = keyboard.nextInt();
            keychains = keychains + add;
            
            return keychains;
        }
        
        public static int removeKeychains(int keychains)
        {
            Scanner keyboard = new Scanner(System.in);
            
            int subtract;
            System.out.println(" ");
            System.out.print("You have " + keychains + " keychains. How many to remove? ");
            subtract = keyboard.nextInt();
            keychains = keychains - subtract;
            
            return keychains;
        }
        
        public static int viewOrder(int keychains)
        {
            int cost;
            System.out.println(" ");
            System.out.println("You have " + keychains + " keychains.");
            System.out.println("Keychains cost $10 each.");
            cost = keychains * 10;
            
            return cost;
        }
        
        public static String checkout(int keychains, int cost)
        {
            Scanner keyboard = new Scanner(System.in);
            
            String name;
            System.out.print("What is your name? ");
            name = keyboard.next();
            System.out.println("You have " + keychains + " keychains.");
            System.out.println("Keychains cost $10 each.");
            System.out.println("Total cost is " + cost + ".");
            
            return name;
        }
    }

    

Picture of the output