// CSE 142, Autumn 2010, Jessica Miller
// A modified version of the BankAccount that we did earlier in the quarter. 
// This version has a static field that allows the BankAccount class to 
// assign each BankAccount object a unique number.
public class BankAccount {
    private static final double MIN_BALANCE = 5.00;
    private static int numAccountsCreated = 0;
    
    // fields - the variables in each object
    private int number;
    private double balance;
    private int ssn;
    private String name;
    private int pin;
    private String address;
    
    public BankAccount(String initialName) {
        name = initialName;
        balance = MIN_BALANCE;
        numAccountsCreated++;
        number = numAccountsCreated;
    }
    
    public int getAccountNumber() {
        return number;
    }
    
    // read-only access to account balance
    public double getBalance() {
        return balance;
    }
    
    // Deposits the given amount from this bank account.
    // If the amount is negative, the transaction is aborted.
    public void deposit(double amount) {
        if (amount > 0.0) {
            balance = balance + amount;
        }
    }
    
    // Withdraws the given amount from this bank account.
    // If the amount is negative or the account does not have that much money,
    // the transaction is aborted.
    public void withdraw(double amount) {
        if (amount > 0.0 && amount <= balance - MIN_BALANCE) {
            balance = balance - amount;
        }
    }
    
    // Returns a String representation of this bank account object,
    // so that it can be printed.
    // Example: "Marty: $5.25"
    public String toString() {
        return name + ": $" + balance;    
    }
}