import java.io.*;

class UseDrinksMachine7a {
// Shows use of if statement, and static method which returns a boolean

  public static void main(String[] args) throws NumberFormatException, IOException 
  {
   DrinksMachine machine1 = new DrinksMachineA(25);
   DrinksMachine machine2 = new DrinksMachineA(80);
   BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
   int amount;
   String reply;
   
   System.out.print("How much do you want to put in a machine? ");
   amount = Integer.parseInt(in.readLine());
   if(cheaper(machine1,machine2))
      {
       machine1.addMoney(amount);
       reply  = machine1.pressCoke();
      }
   else
      {
       machine2.addMoney(amount);
       reply = machine2.pressCoke();
      }
   System.out.print("When you press the coke button on the cheaper machine ");
   System.out.println("you get: "+reply);
  }

  public static boolean cheaper(DrinksMachine a,DrinksMachine b)
  {
   return a.showPrice()<b.showPrice();
  }
}