public abstract class BankAccount {
	private double balance;
	private String statement;
	
	public BankAccount() {
		balance = 0.0;
		statement = "";
	} // end constructor
	
	public void makeDeposit(double amount) {
		balance += amount;
		statement += "Deposit: " + amount + "\n";
		statement += "New balance: " + getBalance() + "\n";
	} // end makeDeposit
	
	public double getBalance() {
		return balance;
	} // end getBalance
	
	public void addToBalance(double amount) {
		balance += amount;
	} // end addToBalance
	
	public void subtractFromBalance(double amount) {
		balance -= amount;
	} // end subtractFromBalance
	
	public boolean makeWithdrawal(double amount){
		if( balance - amount < 0.0 ) return false;
		balance = balance - amount;
		statement += "Withdrawal: " + amount + "\n";
		statement += "New balance: " + getBalance() + "\n";
		return true;
	} // end makeWithdrawal
	
	public String toString() {
		return statement;
	} // end statement
	
	public void clearStatement() {
		statement = "";
	} // end clearStatement
	
	public void addToStatement(String s) {
		statement += s;
	} // end addTostatement
	
} // end BankAccount