import java.io.*;

public class BankAcc {
	public static int numAccsMade = 0;
	
	BufferedReader comingIn;
	private double balance;
	private String password, name;
	private boolean overdraftAllowed;
	private double loanAmount;
	private static final double FEE = 100, PENALTY = 2; // constant values 'belonging' to BankAcc
	public final String TYPE = "REGULAR";
	
	public double getBalance() throws Exception { 
		System.out.println("Dear " + name + ", please enter your password.");
		String temp = comingIn.readLine();
		String badness = "Sorry, you're not authorised to know this information";
		if ( temp.equals(password) ) return balance; 
		System.out.println(badness);
		return Double.NaN; // a useless value!
		}
	public void setBalance(double bal) { balance = bal; }
	
	public void spend(double amt) { 
		if (amt <= balance) 
			balance -= amt;
		else {
			if (overdraftAllowed) {
				loanAmount = amt - balance + FEE;
				balance = 0;
				System.out.println("We have given you an overdraft");
			}
			else {
				System.out.println("Sorry, insufficient funds available");
				loanAmount = FEE * PENALTY;
			}
		}
		
		}
	public void deposit(double amt) { balance += amt; }
	public void overdraftDecision(boolean ok) { overdraftAllowed = ok; }
	
	public BankAcc () { 
		this(0.0); 
	}
	public BankAcc (double balance) {
		this(balance, "anon", "secret");
	}
	public BankAcc (String password) {
		this(0.0, "anon", password);
	}
	public BankAcc (double balance, String name, String password) { 
		this.balance = balance; 
		this.name = name;
		this.password = password; 
		overdraftAllowed = false;
		comingIn = new BufferedReader(new InputStreamReader(System.in));
		numAccsMade++;
	}
}