public class BankAccount implements Comparable
{	public void deposit(double amount)
	{	balance = balance + amount; }

	public void withdraw(double amount)
	{	balance = balance - amount; }

	public double getBalance()
	{	return balance; }

	public int getAccount()
	{	return accountNum; }

	public int getLastAccount()
	{	return lastAccountNum; }

	public BankAccount()
	{ 	this(0); }

	public BankAccount(double b)
	{ 	balance = b;
		lastAccountNum++;
		accountNum = lastAccountNum;
	}

	// clone method
	public Object clone()
	{	// Make a new account with an identical balance
		BankAccount copy = new BankAccount(balance);
		return copy;
	}

	// equals method
	public boolean equals(Object otherObject)
	{	if (otherObject instanceof BankAccount)
		{	BankAccount other = (BankAccount) otherObject;
			return balance == other.balance;
		}	// Accounts are equal if they have the same balance
		else
			return false;
	}

	// toString method
	public String toString()
	{	return "BankAccount[balance="+ balance+ "]"; }

	public int compareTo(Object other)
	{	BankAccount b = (BankAccount) other;
		return (int) (this.getBalance() - b.getBalance());
	}

	private double balance;
	private int accountNum;
	private static int lastAccountNum = 0; // Static
}