Need help in Account class

Question

Hello
I am new to Java and am taking my first course on it. This question deals with the Account class. I have to create an Account.java program that applies the deposit method to a balance. A second testAccount.java program tests the first. It's not working and I was wondering if anyone had some ideas for me. Here is a sample of my code:
testAccount.java
// enter deposit
     String depositString = JOptionPane.showInputDialog (null, "Enter Deposit", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     double deposit = Double.parseDouble(depositString);
//create the account object
     Account account = new Account (id, balance, annualInterestRate, deposit);
Account.java
// reurn the balance
     public double getBalance() {
          return balance;
     // set a new balance
     public void setBalance(double balance) {
          this.balance = balance;
     // return the deposit
     public double getDeposit() {
          return deposit;
     // Deposit
     public void deposit (double deposit){
          this.balance += deposit;
public class Account {
     private int id;
     private double balance;
     private double annualInterestRate;
     private double deposit;
     // constructor
     public Account () {
          this (1122, 20000, 4.5, 0);
     // construct an account with specified id, balance, annual interest rate
     public Account(int id, double balance, double annualInterestRate, double deposit) {
          this.id = id;
          this.balance = balance;
          this.annualInterestRate = annualInterestRate;
          this.deposit = deposit;
Thanks very much
Craig

Answer 1

Ok, sorry for the disjointed question. This my first time seeking help on the forum. Below are my two programs. The testAccount.jave runs but returns a balance that has not been modified by the deposit / withdraw. It is how to use the deposit/withdraw methods that is throwing me for a loop.
TestAccount.java
import javax.swing.JOptionPane;
public class TestAccount {
     public static void main (String [] args) {
     // enter id
     String idString = JOptionPane.showInputDialog (null, "Enter Account ID", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     int id = Integer.parseInt(idString);
     // enter balance
     String balanceString = JOptionPane.showInputDialog (null, "Enter Account Balance", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     double balance = Double.parseDouble(balanceString);
     // enter annual interest rate
     String annualInterestRateString = JOptionPane.showInputDialog (null, "Enter Account Annual Interest Rate", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     double annualInterestRate = Double.parseDouble(annualInterestRateString);
     // enter deposit
     String depositString = JOptionPane.showInputDialog (null, "Enter Deposit", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     double deposit = Double.parseDouble(depositString);
     // enter withdraw
     String withdrawString = JOptionPane.showInputDialog (null, "Enter Withdraw", "TME 2 - 6.3", JOptionPane.QUESTION_MESSAGE);
     double withdraw = Double.parseDouble(withdrawString);
     //create the account object
     Account account = new Account (id, balance, annualInterestRate);
     //print results
     String output = "The Balance is " + account.getBalance() + "\nThe monthly interest is " + account.monthlyInterest();
     JOptionPane.showMessageDialog (null, output, "TME 2 - 6.3", JOptionPane.INFORMATION_MESSAGE);
     System.exit(0);
And here is the Account.java program
public class Account {
     private int id;
     private double balance;
     private double annualInterestRate
     // constructor
     public Account () {
          this (1122, 20000, 4.5);
     // construct an account with specified id, balance, annual interest rate
     public Account(int id, double balance, double annualInterestRate, double deposit) {
          this.id = id;
          this.balance = balance;
          this.annualInterestRate = annualInterestRate;
     // return the id
     public int getID() {
          return id;
     // set a new id
     public void setID(int id) {
          this.id = id;
     // reurn the balance
     public double getBalance() {
          return balance;
     // set a new balance
     public void setBalance(double balance) {
          this.balance = balance;
     // Deposit
     public void deposit (double deposit){
          balance += deposit;
     // Withdraw
     public void withdraw ( double withdraw) {
          this.balance -= withdraw;
     // return the annual interest rate
     public double getAnnualInterestRate() {
          return annualInterestRate;
     // set a new annual interest rate
     public void setAnnualInterestRate(double annualInterestrate) {
          this.annualInterestRate = annualInterestRate;
     // convert annual interest rate into monthly
     public double monthlyInterest() {
          double monthlyInterest = annualInterestRate / 1200 * balance;
          return monthlyInterest;
Thanks very much in advance
Craig