public class Account
{
    private int accountNumber;
    private int pin;
    private double availableBalance;
    private double totalBalance;

    public Account( int theAccountNumber, int thePIN,
       double theAvailableBalance, double theTotalBalance )
    {
        accountNumber = theAccountNumber;
        pin = thePIN;
        availableBalance = theAvailableBalance;
        totalBalance = theTotalBalance;
    }

    public boolean validatePIN( int userPIN )
    {
        if ( userPIN == pin ) return true;
        else return false;
    }

    public double getAvailableBalance()
    {
        return availableBalance;
    }

    public double getTotalBalance()
    {
        return totalBalance;
    }

    public void credit( double amount )
    {
        totalBalance += amount;
    }

    public void debit( double amount )
    {
        availableBalance -= amount;
        totalBalance -= amount;
    }

    public int getAccountNumber()
    {
        return accountNumber;
    }
}