// Deposit.java

// Represents a deposit ATM transaction

public class Deposit extends Transaction {

private double amount; // amount to deposit

private Keypad keypad; // reference to keypad

private DepositSlot depositSlot; // reference to deposit slot

private final static int CANCELED = 0; // constant for cancel option

// Deposit constructor

public Deposit(int userAccountNumber, Screen atmScreen,

BankDatabase atmBankDatabase, Keypad atmKeypad,

DepositSlot atmDepositSlot) {

// initialize superclass variables

super(userAccountNumber, atmScreen, atmBankDatabase);

// initialize references to keypad and deposit slot

keypad = atmKeypad;

depositSlot = atmDepositSlot;

}

// perform transaction

@Override

public void execute() {

BankDatabase bankDatabase = getBankDatabase(); // get reference

Screen screen = getScreen(); // get reference

amount = promptForDepositAmount(); // get deposit amount from user

// check whether user entered a deposit amount or canceled

if (amount != CANCELED) {

// request deposit envelope containing specified amount

screen.displayMessage(

"\nPlease insert a deposit envelope containing ");

screen.displayDollarAmount(amount);

screen.displayMessageLine(".");

// receive deposit envelope

boolean envelopeReceived = depositSlot.isEnvelopeReceived();

// check whether deposit envelope was received

if (envelopeReceived) {

screen.displayMessageLine("\nYour envelope has been " +

"received.\nNOTE: The money just deposited will not " +

"be available until we verify the amount of any " +

"enclosed cash and your checks clear.");

// credit account to reflect the deposit

bankDatabase.credit(getAccountNumber(), amount);

}

else { // deposit envelope not received

screen.displayMessageLine("\nYou did not insert an " +

"envelope, so the ATM has canceled your transaction.");

}

}

else { // user canceled instead of entering amount

screen.displayMessageLine("\nCanceling transaction...");

}

}

// prompt user to enter a deposit amount in cents

private double promptForDepositAmount() {

Screen screen = getScreen(); // get reference to screen

// display the prompt

screen.displayMessage("\nPlease enter a deposit amount in " +

"CENTS (or 0 to cancel): ");

int input = keypad.getInput(); // receive input of deposit amount

// check whether the user canceled or entered a valid amount

if (input == CANCELED) {

return CANCELED;

}

else {

return (double) input / 100; // return dollar amount

}

}

}

/**************************************************************************

* (C) Copyright 1992-2018 by Deitel & Associates, Inc. and *

* Pearson Education, Inc. All Rights Reserved. *

* *

* DISCLAIMER: The authors and publisher of this book have used their *

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