Interface States

StateDesignPattern/VendingMachineStates/States.java:9–26

import java.util.List;

public interface States {


    public void clickOnInsertCoinButton(VendingMachine machine) throws Exception;

    public void insertCoin(VendingMachine machine, Coin coin) throws Exception;

    public void clickOnStartProductSelectionButton(VendingMachine machine) throws Exception;

    public int getChange(int returnChangeMoney) throws Exception;

    public void chooseProduct(VendingMachine machine, int codeNumber) throws Exception;

    public List<Coin> refundFullMoney(VendingMachine machine) throws Exception;


    Item dispenseProduct(VendingMachine machine, int codeNumber) throws Exception;
}