Account.java

/**
 * Represents a bank account
 */
public class Account {
    private int accountNumber; // account number
    private int pin; // PIN for authentication
    private double availableBalance; // funds available for withdrawal
    private double totalBalance; // funds available + pending deposits

    // Account constructor initializes attributes
    public Account(int theAccountNumber, int thePIN, double theAvailableBalance, double theTotalBalance) {
        accountNumber = theAccountNumber;
        pin = thePIN;
        availableBalance = theAvailableBalance;
        totalBalance = theTotalBalance;
    } // end Account constructor

    // determines whether a user-specified PIN matches PIN in Account
    public boolean validatePIN(int userPIN) {
        if (userPIN == pin)
            return true;
        else
            return false;
    } // end method validatePIN

    // returns available balance
    public double getAvailableBalance() {
        return availableBalance;
    } // end getAvailableBalance

    // returns the total balance
    public double getTotalBalance() {
        return totalBalance;
    } // end method getTotalBalance

    // credits an amount to the account
    public void credit(double amount) {
        totalBalance += amount; // add to total balance
    } // end method credit

    // debits an amount from the account
    public void debit(double amount) {
        availableBalance -= amount; // subtract from available balance
        totalBalance -= amount; // subtract from total balance
    } // end method debit

    // returns account number
    public int getAccountNumber() {
        return accountNumber;
    } // end method getAccountNumber
} // end class Account