Method main

StateDesignPattern/Main.java:8–48

(String args[])

public class Main {

    public static void main(String args[]){

        VendingMachine vendingMachine = new VendingMachine();
        try {

            System.out.println("|");
            System.out.println("filling up the inventory");
            System.out.println("|");

            fillUpInventory(vendingMachine);
            displayInventory(vendingMachine);

            System.out.println("|");
            System.out.println("clicking on InsertCoinButton");
            System.out.println("|");

            States vendingState = vendingMachine.getVendingMachineState();
            vendingState.clickOnInsertCoinButton(vendingMachine);

            vendingState = vendingMachine.getVendingMachineState();
            vendingState.insertCoin(vendingMachine, Coin.NICKEL);
            vendingState.insertCoin(vendingMachine, Coin.QUARTER);
            // vendingState.insertCoin(vendingMachine, Coin.NICKEL);

            System.out.println("|");
            System.out.println("clicking on ProductSelectionButton");
            System.out.println("|");
            vendingState.clickOnStartProductSelectionButton(vendingMachine);

            vendingState = vendingMachine.getVendingMachineState();
            vendingState.chooseProduct(vendingMachine, 102);

            displayInventory(vendingMachine);

        }
        catch (Exception e){
            displayInventory(vendingMachine);
        }


    }

    private static void fillUpInventory(VendingMachine vendingMachine){
        Inventory inventory = vendingMachine.getInventory();