// CSE 143, Autumn 2013
// Each BankAccount object represents account information for a bank customer.
// We use private fields and public methods to make sure that the user
// cannot ever have a negative account balance.
// 

import java.util.*;   

public class BankAccount {
    
    private int id;
    private double balance;
	 private ArrayList<String> transactions;
    
    // Constructs a new account with the given ID and a balance of $0.00.
    public BankAccount(int id) {
        this.id = id;
        balance = 0.0;
		  transactions = new ArrayList<String>();
    }
    
    // Deposits the given amount of money into the user's account.
    // If the deposit amount is too big (more than $500), or if it is 
    // negative, the method does nothing.
    // Also records a log entry of the deposit to be printed later.
    public void deposit(double money) {
        if (0 <= money) {
            balance = balance + money;
				transactions.add("deposit $" + money);
        }
    }
    
    // Withdraws the given amount of money from the user's account.
    // If the user does not have enough money, or if the amount of money
    // is negative, the method does nothing.
    // Also records a log entry of the withdrawal to be printed later.
    public void withdraw(double money) {
        if (0 <= money && money <= balance) {
            balance = balance - money;
				transactions.add("withdraw $" + money);
        }
    }
    
    // Returns the account user's current balance.
    public double getBalance() {
        return balance;
    }
    
    // Returns the account user's ID number.
    public double getID() {
        return id;
    }

    // Prints a log of all transactions (deposits and withdrawals) that have
    // been made on this account, one per line.
    public void printLog() {
	 	for(int i = 0; i < transactions.size(); i++) {
			System.out.println(transactions.get(i));
		}	
	}
}