public class Account {
	private double balance;
	// constructors:
	public Account(double initBalance) {
		this.balance = initBalance;
	}
	public Account() {
		this.balance = 0;
	}
	// accessors:
	public double getBalance() {
		return this.balance;
	}
	// mutators:
	public void withdraw(double amt) {
		this.balance = this.balance - amt;
	}
	public void deposit(double amt) {
		balance += amt; // short hand!
	}

}