public class BankAccount { private double balance; public BankAccount() { this.balance = 0.0; } public BankAccount(double initialBalance) { this.balance = initialBalance; } public void deposit(double amount) { this.balance = this.balance + amount; } public void withdraw(double amount) { balance = balance - amount; } public double getBalance() { return balance; } public String toString() { return "BankAccount[balance = " + balance + "]"; } }