JAVA - Problem: How to click the withdraw button 3 times, and make it work on th
ID: 3775346 • Letter: J
Question
JAVA - Problem: How to click the withdraw button 3 times, and make it work on the third click? I cannot figure it out and cannot find an example. This program already runs without issues.
GUI.java
package atmMachine;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class GUI implements ActionListener {
// Creating objects
final private JFrame frame;
final private JButton withdraw;
final private JButton deposit;
final private JButton transfer;
final private JButton balance;
final private JButton exitProgram;
private JRadioButton checking;
private JRadioButton savings;
private static JTextField output;
final private JPanel panel;
private static Account checkingAccount;
private static Account savingsAccount;
private static Account currentAccount;
private static boolean exitLoop = false;
private int clicks;
public static void main(String args[]) {
GUI someObj = new GUI();
}
public GUI() {
// Placing a title on the ATM's GUI
frame = new JFrame("ATM Machine");
// Creating the buttons on the panel
deposit = new JButton("Deposit");
transfer = new JButton("Transfer to");
withdraw = new JButton("Withdraw");
balance = new JButton("Balance");
exitProgram = new JButton("Exit");
// Creating the output text field
output = new JTextField();
// Creating the panel for which to hold the buttons.
panel = new JPanel();
// Setting the amounts in the checing and savings accounts,
// and also setting the currently selected account's value.
checkingAccount = new Account(1000);
savingsAccount = new Account(2000);
currentAccount = new Account(0);
// Add event listener
exitProgram.addActionListener(this);
transfer.addActionListener(this);
deposit.addActionListener(this);
balance.addActionListener(this);
withdraw.addActionListener(this);
// Creates Radio Button Option for Checking and Savings
checking = new JRadioButton("Checking");
savings = new JRadioButton("Savings");
// This method determines if the user selects the Checking Account Radio Button.
checking.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (checking.isSelected()) {
currentAccount = checkingAccount;
savings.setSelected(false);
exitLoop = true;
}
}
}
); // END Checking Action Listener.
// This method determines if the user selects the Savings Account Radio Button.
savings.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (savings.isSelected()) {
currentAccount = savingsAccount;
checking.setSelected(false);
exitLoop = true;
}
}
}
);// END Savings Action Listener.
// Adds buttons to the panel
//panel.setLayout(new GridLayout(4, 4));
panel.add(checking);
panel.add(savings);
panel.add(deposit);
panel.add(transfer);
panel.add(balance);
panel.add(withdraw);
panel.add(exitProgram);
panel.add(output, BorderLayout.CENTER);
panel.setLayout(new GridLayout(4, 4));
// Storing the panel in a parent object, the panel cannot exist alone. Stored within
// ATM's GUI(JFrame)
frame.add(panel);
frame.pack();
frame.setSize(800, 400);
// Centers the ATM's GUI(the JFrame) on a screen with any resolution, the pack(),
// and size() methods must come first for it to be centered.
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
// Decides with a switch which button the user clicked.
public void actionPerformed(ActionEvent e) {
int i;
int count = 1;
if(exitLoop == true) {
for(i=0; i count =+ i;
switch (e.getActionCommand()) {
case "Withdraw": {
String amount = JOptionPane.showInputDialog("Please enter the amount to withdraw. ");
try {
currentAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount + " The withdrawal was successful! Take our cash.");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
break;
}
case "Deposit": {
String amount = JOptionPane
.showInputDialog("Enter deposit amount ");
try {
currentAccount.deposit(Double.parseDouble(amount));
output.setText("$" + amount + " Deposited");
}
catch (NumberFormatException e1) {
output.setText("You must enter an integer.");
}
break;
}
case "Transfer to": {
String amount = JOptionPane
.showInputDialog("Please enter the transfer amount.");
if (currentAccount.equals(savingsAccount)) {
try {
currentAccount.deposit(Double.parseDouble(amount));
checkingAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount
+ " transferred to saving account");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
}
else {
try {
currentAccount.deposit(Double.parseDouble(amount));
savingsAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount
+ " transferred to checking account");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
}
break;
}
// Gives the user the balance of the currently selected account.
case "Balance":
NumberFormat formatter = new DecimalFormat("#0.00");
JFrame frame = new JFrame("JOptionPane showMessageDialog example");
JOptionPane.showMessageDialog(frame, "The current balance is $"
+ formatter.format(currentAccount.getBalance()));
break;
default:
break;
}
}
}
// This switch exits the program when the user clicks the exit button.
switch(e.getActionCommand()) {
case "Exit":
System.exit(0);
default:
break;
}
}
}//END FILE
Account.java
package atmMachine;
public class Account {
// Creating and initializing variables for transaction free and account balance.
private static final double transactionFee = 1.5;
private double acctBal = 0;
int j = 1;
public Account(double acctBal) {
this.acctBal = acctBal;
}
// Setters
public void setBalance(double acctBal) {
this.acctBal = acctBal;
}
// Getters
public double getBalance() {
return this.acctBal;
}
// Deposit method
public void deposit(double amount) {
acctBal += amount;
}
// This method is one for handling the withdrawals, it also throws exceptions for insufficent funds
// and determines and subtracts the transaction fee.
public void withdraw(double amount) throws InsufficentFunds {
if(amount%20 !=0) {
throw new InsufficentFunds("The amount withdrawn may only be in denominations of 20, thank you.");
}
else if(this.acctBal > acctBal) {
throw new InsufficentFunds("Insufficent Funds! Please try again.");
}
else if(this.acctBal >= amount + transactionFee) {
this.acctBal = this.acctBal - amount;
if(j%4 == 0)
this.acctBal = this.acctBal - transactionFee;
else
j++;
}
else
System.out.println("Insufficent Funds!");
}
}// END FILE
InsufficentFunds.java
package atmMachine;
public class InsufficentFunds extends Exception{
private static final long serialVersionUID = 1L;
public InsufficentFunds(String e2) {
super(e2);
}
}// END FILE
Explanation / Answer
package atmMachine;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class GUI implements ActionListener {
// Creating objects
final private JFrame frame;
final private JButton withdraw;
final private JButton deposit;
final private JButton transfer;
final private JButton balance;
final private JButton exitProgram;
private JRadioButton checking;
private JRadioButton savings;
private static JTextField output;
final private JPanel panel;
private static Account checkingAccount;
private static Account savingsAccount;
private static Account currentAccount;
private static boolean exitLoop = false;
private int clicks;
public static void main(String args[]) {
GUI someObj = new GUI();
}
public GUI() {
// Placing a title on the ATM's GUI
frame = new JFrame("ATM Machine");
// Creating the buttons on the panel
deposit = new JButton("Deposit");
transfer = new JButton("Transfer to");
withdraw = new JButton("Withdraw");
balance = new JButton("Balance");
exitProgram = new JButton("Exit");
// Creating the output text field
output = new JTextField();
// Creating the panel for which to hold the buttons.
panel = new JPanel();
// Setting the amounts in the checing and savings accounts,
// and also setting the currently selected account's value.
checkingAccount = new Account(1000);
savingsAccount = new Account(2000);
currentAccount = new Account(0);
// Add event listener
exitProgram.addActionListener(this);
transfer.addActionListener(this);
deposit.addActionListener(this);
balance.addActionListener(this);
withdraw.addActionListener(this);
// Creates Radio Button Option for Checking and Savings
checking = new JRadioButton("Checking");
savings = new JRadioButton("Savings");
// This method determines if the user selects the Checking Account Radio Button.
checking.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (checking.isSelected()) {
currentAccount = checkingAccount;
savings.setSelected(false);
exitLoop = true;
}
}
}
); // END Checking Action Listener.
// This method determines if the user selects the Savings Account Radio Button.
savings.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (savings.isSelected()) {
currentAccount = savingsAccount;
checking.setSelected(false);
exitLoop = true;
}
}
}
);// END Savings Action Listener.
// Adds buttons to the panel
//panel.setLayout(new GridLayout(4, 4));
panel.add(checking);
panel.add(savings);
panel.add(deposit);
panel.add(transfer);
panel.add(balance);
panel.add(withdraw);
panel.add(exitProgram);
panel.add(output, BorderLayout.CENTER);
panel.setLayout(new GridLayout(4, 4));
// Storing the panel in a parent object, the panel cannot exist alone. Stored within
// ATM's GUI(JFrame)
frame.add(panel);
frame.pack();
frame.setSize(800, 400);
// Centers the ATM's GUI(the JFrame) on a screen with any resolution, the pack(),
// and size() methods must come first for it to be centered.
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
// Decides with a switch which button the user clicked.
public void actionPerformed(ActionEvent e) {
int i;
int count = 1;
if(exitLoop == true) {
for(i=0; i count =+ i;
switch (e.getActionCommand()) {
case "Withdraw": {
String amount = JOptionPane.showInputDialog("Please enter the amount to withdraw. ");
try {
currentAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount + " The withdrawal was successful! Take our cash.");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
break;
}
case "Deposit": {
String amount = JOptionPane
.showInputDialog("Enter deposit amount ");
try {
currentAccount.deposit(Double.parseDouble(amount));
output.setText("$" + amount + " Deposited");
}
catch (NumberFormatException e1) {
output.setText("You must enter an integer.");
}
break;
}
case "Transfer to": {
String amount = JOptionPane
.showInputDialog("Please enter the transfer amount.");
if (currentAccount.equals(savingsAccount)) {
try {
currentAccount.deposit(Double.parseDouble(amount));
checkingAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount
+ " transferred to saving account");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
}
else {
try {
currentAccount.deposit(Double.parseDouble(amount));
savingsAccount.withdraw(Double.parseDouble(amount));
output.setText("$" + amount
+ " transferred to checking account");
}
catch (NumberFormatException e1) {
output.setText("Input must be Integer!");
}
catch (InsufficentFunds e1) {
output.setText(e1.getMessage());
}
}
break;
}
// Gives the user the balance of the currently selected account.
case "Balance":
NumberFormat formatter = new DecimalFormat("#0.00");
JFrame frame = new JFrame("JOptionPane showMessageDialog example");
JOptionPane.showMessageDialog(frame, "The current balance is $"
+ formatter.format(currentAccount.getBalance()));
break;
default:
break;
}
}
}
// This switch exits the program when the user clicks the exit button.
switch(e.getActionCommand()) {
case "Exit":
System.exit(0);
default:
break;
}
}
}//END FILE
Account.java
package atmMachine;
public class Account {
// Creating and initializing variables for transaction free and account balance.
private static final double transactionFee = 1.5;
private double acctBal = 0;
int j = 1;
public Account(double acctBal) {
this.acctBal = acctBal;
}
// Setters
public void setBalance(double acctBal) {
this.acctBal = acctBal;
}
// Getters
public double getBalance() {
return this.acctBal;
}
// Deposit method
public void deposit(double amount) {
acctBal += amount;
}
// This method is one for handling the withdrawals, it also throws exceptions for insufficent funds
// and determines and subtracts the transaction fee.
public void withdraw(double amount) throws InsufficentFunds {
if(amount%20 !=0) {
throw new InsufficentFunds("The amount withdrawn may only be in denominations of 20, thank you.");
}
else if(this.acctBal > acctBal) {
throw new InsufficentFunds("Insufficent Funds! Please try again.");
}
else if(this.acctBal >= amount + transactionFee) {
this.acctBal = this.acctBal - amount;
if(j%4 == 0)
this.acctBal = this.acctBal - transactionFee;
else
j++;
}
else
System.out.println("Insufficent Funds!");
}
}// END FILE
InsufficentFunds.java
package atmMachine;
public class InsufficentFunds extends Exception{
private static final long serialVersionUID = 1L;
public InsufficentFunds(String e2) {
super(e2);
}
}
// END FILE
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.