Unable To Stop JOptionPane Warning In A While Statement
I have tried everything I know to create a else inside of a while loop to take a false return value and put out a warning message pops up, lets you click ok, resets focus, clears field and allows for the correct entry to be made. I have included the section I am referring to as well as the entire GUI. It's 585 lines.
The instructions are: If the title does not exist, you will alert them with a JOptionPane box that the product does not exist, clear all the fields, and set the focus in the name field. You will not create a product for a non-existing title.
Code:
// Music Method
// Still need logic for returning warning message for title not found // might be able to create in Submit Handler
public void createMusic()
{
if(music.isSelected() && combo1.getSelectedIndex() != 0 && titleText != null)
{
Scanner input;
String fileScan = null;
try
{
input = new Scanner(new File("C:/Users/Kerry Hawkins/workspace/HW2/src/music.txt"));
while(input.hasNext())
{
fileScan = input.nextLine();
if(titleText.getText().equals(fileScan))
{
if(input.hasNext() == true)
{
artist = input.nextLine();
noOfSongs = Integer.parseInt(input.nextLine());
price = input.nextDouble();
}
}// I tried an else satement for here, all I got was a repeating JOptionPane because I can't break out of the loop.
}
musicCreated = new Music(titleText.getText(), price, new Date(month, day, year), Music.GenreType.CLASSICAL, artist, noOfSongs);
JOptionPane.showMessageDialog(null, "You have just purchased: " + "\n" + musicCreated, "Music Purchased!", JOptionPane.PLAIN_MESSAGE);
}catch(IOException ex)
{
ex.printStackTrace();
}
}
}
Code:
// Kerry Hawkins
// HW2
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
@SuppressWarnings("serial")
public class SalesGUI extends JFrame
{
private JTextField nameText, streetText, cityText, stateText, zipText,
titleText, datePurchasedText, accountNumberText;
private JLabel nameLabel, streetLabel, cityLabel, stateLabel, zipLabel,
chooseOneLabel, musicTypeLabel, appTypeLabel, titleLabel,
datePurchasedLabel, accountNumberLabel;
private JButton submit, finish;
private ButtonGroup group;
private JRadioButton gameButton, productivityButton, educationButton;
private JCheckBox app, music;
private JComboBox combo1;
private JPanel musicTypePanel, softwareTypePanel;
private String artist;
private int noOfSongs;
private double price;
private String developer;
private App appCreated;
private Music musicCreated;
boolean input = true;
String[] names = { "CHOOSE ONE", "CLASSICAL", "COUNTRY", "ROCK" };
String statement = "";
ArrayList<Customer> customerArray = new ArrayList<Customer>();
public SalesGUI()
{
super("Mav Tunes SalesGUI.java");
setLayout(new GridLayout(12, 2));
// Music JPanel
musicTypePanel = new JPanel();
musicTypePanel.setLayout(new GridLayout(1, 2));
add(musicTypePanel);
// APP JPanel
softwareTypePanel = new JPanel();
softwareTypePanel.setLayout(new GridLayout(1, 3));
add(softwareTypePanel);
// JLabels
nameLabel = new JLabel("Name");
streetLabel = new JLabel("Street");
cityLabel = new JLabel("City");
stateLabel = new JLabel("State");
zipLabel = new JLabel("Zip");
chooseOneLabel = new JLabel("Choose One");
musicTypeLabel = new JLabel("Type of Music");
appTypeLabel = new JLabel("Type of App");
titleLabel = new JLabel("Enter Title");
datePurchasedLabel = new JLabel("Date Purchased");
accountNumberLabel = new JLabel("Account Number");
// JTextFields
nameText = new JTextField(15);
streetText = new JTextField(15);
cityText = new JTextField(15);
stateText = new JTextField(15);
zipText = new JTextField(15);
titleText = new JTextField(15);
datePurchasedText = new JTextField(15);
datePurchasedText.setToolTipText("mm/dd/yyyy");
accountNumberText = new JTextField(15);
// JCheckBox with ItemListener
app = new JCheckBox("APP", false);
app.addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent ie)
{
if (ie.getItem() == app)
{
gameButton.setEnabled(true);
productivityButton.setEnabled(true);
educationButton.setEnabled(true);
if (app.isSelected())
{
combo1.setEnabled(false);
combo1.setSelectedIndex(0);
music.setSelected(false);
}
if (app.isSelected() == false)
{
combo1.setEnabled(true);
music.setEnabled(true);
group.clearSelection();
}
}
}
});
// JCheckBox with ItemListener
music = new JCheckBox("MUSIC", false);
music.addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent ie)
{
if (ie.getItem() == music)
{
if (music.isSelected())
{
app.setSelected(false);
combo1.setEnabled(true);
group.clearSelection();
gameButton.setEnabled(false);
productivityButton.setEnabled(false);
educationButton.setEnabled(false);
}
if (music.isSelected() == false)
{
gameButton.setEnabled(true);
productivityButton.setEnabled(true);
educationButton.setEnabled(true);
combo1.setSelectedIndex(0);
}
}
}
});
// JComboBox with no listeners
combo1 = new JComboBox(names);
combo1.setSelectedIndex(0);
combo1.setMaximumRowCount(3);
// JRadioButtons with no listeners
gameButton = new JRadioButton("GAME", false);
// JRadioButtons with no listeners
productivityButton = new JRadioButton("PRODUCTIVITY", false);
// JRadioButtons with no listeners
educationButton = new JRadioButton("EDUCATION", false);
// JButtonGroup
group = new ButtonGroup();
group.add(gameButton);
group.add(productivityButton);
group.add(educationButton);
// JButton with inner class listeners below
submit = new JButton("SUBMIT");
finish = new JButton("FINISH");
// Submit Handler
class SubmitButtonHandler implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
if (ae.getSource() == submit)
{
checkInput();
parseDate();
Customer c = new Customer(nameText.getText(), new Address(streetText.getText(),
cityText.getText(), stateText.getText(), Integer.parseInt(zipText.getText())),
Integer.parseInt(accountNumberText.getText()));
if(music.isSelected())// need an error message to handle if title does not exist and also stops creation of MUSIC
{
createMusic();
c.addToProductList(musicCreated);
}
else // need an error message to handle if title does not exist and also stops creation of APP
{
createApp();
c.addToProductList(appCreated);
}
customerArray.add(c);
JOptionPane.showMessageDialog(null, c, "Customer Created", JOptionPane.PLAIN_MESSAGE);
if (c != null)
{
clearAll();
nameText.requestFocus();
}
}
}
}
SubmitButtonHandler submitHandler = new SubmitButtonHandler();
submit.addActionListener(submitHandler);
// Finish Handler prints customer record
class FinishButtonHandler implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
if (ae.getSource() == finish)
{
for (Customer c : customerArray)
{
statement += c.createHistory();
}
JOptionPane.showMessageDialog(null, statement,"Purchase History", JOptionPane.PLAIN_MESSAGE);
statement = "";
}
clearAll();
nameText.requestFocus();
}
}
FinishButtonHandler finishHandler = new FinishButtonHandler();
finish.addActionListener(finishHandler);
// ADD Label and Text Components
add(nameLabel);
add(nameText);
add(streetLabel);
add(streetText);
add(cityLabel);
add(cityText);
add(stateLabel);
add(stateText);
add(zipLabel);
add(zipText);
// ADD APP and MUSIC JPanel
add(chooseOneLabel);
add(musicTypePanel);
musicTypePanel.add(app);
musicTypePanel.add(music);
// ADD JCombo Box
add(musicTypeLabel);
add(combo1);
// ADD Software JPanel
add(appTypeLabel);
add(softwareTypePanel);
softwareTypePanel.add(gameButton);
softwareTypePanel.add(productivityButton);
softwareTypePanel.add(educationButton);
// ADD Label and Text Components
add(titleLabel);
add(titleText);
add(datePurchasedLabel);
add(datePurchasedText);
add(accountNumberLabel);
add(accountNumberText);
// Add JButtons
add(submit);
add(finish);
}
// Clear all fields, Check boxes, combination box and radio buttons
public void clearAll()
{
if (nameText.getText() != null)
{
nameText.setText(null);
}
if (streetText.getText() != null)
{
streetText.setText(null);
}
if (cityText.getText() != null)
{
cityText.setText(null);
}
if (stateText.getText() != null)
{
stateText.setText(null);
}
if (zipText.getText() != null)
{
zipText.setText(null);
}
if (app.isSelected())
{
app.setSelected(false);
}
if (music.isSelected())
{
music.setSelected(false);
}
if (combo1.getSelectedIndex() != 0)
{
combo1.setSelectedIndex(0);
}
group.clearSelection();
if (titleText.getText() != null)
{
titleText.setText(null);
}
if (datePurchasedText.getText() != null)
{
datePurchasedText.setText(null);
}
if (accountNumberText.getText() != null)
{
accountNumberText.setText(null);
}
}
// Music Method
// Still need logic for returning warning message for title not found // might be able to create in Submit Handler
public void createMusic()
{
if(music.isSelected() && combo1.getSelectedIndex() != 0 && titleText != null)
{
Scanner input;
String fileScan = null;
try
{
input = new Scanner(new File("C:/Users/Kerry Hawkins/workspace/HW2/src/music.txt"));
while(input.hasNext())
{
fileScan = input.nextLine();
if(titleText.getText().equals(fileScan))
{
if(input.hasNext() == true)
{
artist = input.nextLine();
noOfSongs = Integer.parseInt(input.nextLine());
price = input.nextDouble();
}
}
}
musicCreated = new Music(titleText.getText(), price, new Date(month, day, year), Music.GenreType.CLASSICAL, artist, noOfSongs);
JOptionPane.showMessageDialog(null, "You have just purchased: " + "\n" + musicCreated, "Music Purchased!", JOptionPane.PLAIN_MESSAGE);
}catch(IOException ex)
{
ex.printStackTrace();
}
}
}
// APP method
// Still need logic for returning warning message for title not found // might be able to create in Submit Handler
public void createApp()
{
if(app.isSelected() && group.getSelection() != null && titleText != null)
{
Scanner input;
String fileScan;
try
{
input = new Scanner(new File("C:/Users/Kerry Hawkins/workspace/HW2/src/app.txt"));
while(input.hasNext())
{
fileScan = input.nextLine();
if(titleText.getText().equals(fileScan))
{
if(input.hasNext() == true)
{
developer = input.nextLine();
price = input.nextDouble();
}
}
}
appCreated = new App(titleText.getText(), price, new Date(month, day, year),App.Type.GAME, developer);
JOptionPane.showMessageDialog(null, "You have just purchased: " + "\n" + appCreated, "Application Purchased!", JOptionPane.PLAIN_MESSAGE);
}catch(IOException ex)
{
ex.printStackTrace();
}
}
}
// Variables for parseDate Method()
int index1;
int index2;
int month;
int day;
int year;
// Date Method
public void parseDate()
{
String dP = datePurchasedText.getText();
index1 = dP.indexOf("/");
month = Integer.parseInt(dP.substring(0, index1));
index1++;
index2 = dP.lastIndexOf("/");
day = Integer.parseInt(dP.substring(index1, index2));
index2++;
year = Integer.parseInt(dP.substring(index2, dP.length()));
}
// CheckInput Method
public boolean checkInput()
{
String myText = nameText.getText();
String myText1 = streetText.getText();
String myText2 = cityText.getText();
String myText3 = stateText.getText();
String myText4 = zipText.getText();
String myText5 = titleText.getText();
String myText6 = datePurchasedText.getText();
String myText7 = accountNumberText.getText();
if (myText == null || myText.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your name", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
nameText.requestFocus();
}
else if (myText1 == null || myText1.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your street", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
streetText.requestFocus();
}
else if (myText2 == null || myText2.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your city", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
cityText.requestFocus();
}
else if (myText3 == null || myText3.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your state", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
stateText.requestFocus();
}
else if (myText4 == null || myText4.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your zip", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
zipText.requestFocus();
}
else if (app.isSelected() == false && (music.isSelected() == false))
{
JOptionPane.showMessageDialog(null, "Please select the APP or MUSIC type", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
}
else if (app.isSelected() == true && group.getSelection() == null)
{
JOptionPane.showMessageDialog(null, "Please select the application type");
input = false;
app.requestFocus();
}
else if (music.isSelected() == true && combo1.getSelectedIndex() == 0)
{
JOptionPane.showMessageDialog(null, "Please select the music genre");
input = false;
combo1.requestFocus();
}
else if (myText5 == null || myText5.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter title", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
titleText.requestFocus();
}
else if (myText6 == null || myText6.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter the date", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
datePurchasedText.requestFocus();
}
else if (myText7 == null || myText7.length() == 0)
{
JOptionPane.showMessageDialog(null, "Please enter your account number", "Mav Tunes", JOptionPane.WARNING_MESSAGE);
input = false;
accountNumberText.requestFocus();
}
return true;
}
}
