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JScrollPane array in JOptionPane.showMessageDialog

In my code, I'm trying to use a JScrollPane and add it into a JOptionPane.showMessageDialog. I don't know if this is possible to start with but I don't know how to do it if it is, and how to add the whole array into the one message and not multiple. Here is my code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Scanner;
import java.util.ArrayList;
import java.util.Iterator;
public class CulminatingPro implements ActionListener
{
//Create an array of buttons
static JButton[][] buttons = new JButton[10][4];
static JButton jbtList = new JButton("List");
ArrayList<Culminating> flyers = new ArrayList<Culminating>();
String fn;
String ln;
String pn;
String adress;
int column;
int row;
int reply;
int v;
Object[] options = {"First Name",
"Last Name",
"Phone Number",
"Adress"};
public static void main(String[] args)
{
JFrame frame = new JFrame("Fly By Buddies");
frame.setSize(900, 900);
JPanel mainPanel = new JPanel();
mainPanel.setLayout( new GridLayout(1,2));
JPanel paneSeats = new JPanel();
JPanel paneInfo = new JPanel();
paneSeats.setLayout( new GridLayout(11, 4, 5,5));
mainPanel.add(paneSeats);
mainPanel.add(paneInfo);
frame.setContentPane(mainPanel);
for (int i = 0; i < buttons.length; i++)
{
for(int j = 0; j < buttons[0].length; j++)
{
if (j + 1 == 1)
{
buttons[i][j] = new JButton("Seat " + (i + 1) + "A");
buttons[i][j].setBackground(Color.GREEN);
paneSeats.add(buttons[i][j]);
buttons[i][j].addActionListener(new CulminatingPro());
}
else if (j + 1 == 2)
{
buttons[i][j] = new JButton("Seat " + (i + 1) + "B");
buttons[i][j].setBackground(Color.GREEN);
paneSeats.add(buttons[i][j]);
buttons[i][j].addActionListener(new CulminatingPro());
}
else if (j + 1== 3)
{
buttons[i][j] = new JButton("Seat " + (i + 1) + "C");
buttons[i][j].setBackground(Color.GREEN);
paneSeats.add(buttons[i][j]);
buttons[i][j].addActionListener(new CulminatingPro());
}
else if (j + 1== 4)
{
buttons[i][j] = new JButton("Seat " + (i + 1) + "D");
buttons[i][j].setBackground(Color.GREEN);
paneSeats.add(buttons[i][j]);
buttons[i][j].addActionListener(new CulminatingPro());
}
}
}
jbtList.setPreferredSize(new Dimension(400, 40));
jbtList.addActionListener(new CulminatingPro());
paneInfo.add(jbtList, BorderLayout.SOUTH);
frame.setVisible(true);
frame.toFront();
}
public void actionPerformed(ActionEvent event)
{
for (int i = 0; i < buttons.length; i++)
{
for(int j = 0; j < buttons[0].length; j++)
{
if (event.getSource() == buttons[i][j])
{
v = 0;
for (int k = 0; k < flyers.size();k++)
{
if((flyers.get(k).getColumn() == (j) && (flyers.get(k).getColumn() == (j))))
{
if (!flyers.get(k).getFirstName().equals(""))
{
reply = JOptionPane.showConfirmDialog(null,
"Would you like to delete the info on the passenger?", "Deletion", JOptionPane.YES_NO_OPTION);
if (reply == JOptionPane.YES_OPTION)
{
flyers.remove(k);
buttons[i][j].setBackground(Color.GREEN);
}
else if (reply == JOptionPane.NO_OPTION)
{
reply = JOptionPane.showConfirmDialog(null,
"Would you like to modify the info on the passenger?", "Modification", JOptionPane.YES_NO_OPTION);
if (reply == JOptionPane.YES_OPTION)
{
int n = JOptionPane.showOptionDialog(null, "Message", "Title",
JOptionPane.DEFAULT_OPTION, JOptionPane.PLAIN_MESSAGE,
null, options, options[0]);
n = n + 1;
if(n == 0)
{
fn = JOptionPane.showInputDialog(null,"Re-enter passenger's first name: ");
flyers.get(k).setFirstName(fn);
}
if(n == 2)
{
ln = JOptionPane.showInputDialog(null,"Re-enter passenger's last name: ");
flyers.get(k).setLastName(ln);
}
if(n == 3)
{
pn = JOptionPane.showInputDialog(null,"Re-enter passenger's phone number: ");
flyers.get(k).setPhoneNumber(pn);
}
if(n == 4)
{
adress = JOptionPane.showInputDialog(null,"Re-enter passenger's adress: ");
flyers.get(k).setAdress(adress);
}
}
}
v = 1;
}
}
}
if(v == 0)
{
fn = JOptionPane.showInputDialog(null,"Passenger's first name (Necessary): ");
ln = JOptionPane.showInputDialog(null,"Passenger's last name (Necessary): ");
pn = JOptionPane.showInputDialog(null,"Passenger's phone number: ");
adress = JOptionPane.showInputDialog(null,"Passenger's adress: ");
column = j;
row = i;
flyers.add(new Culminating(fn,ln,pn,adress,column,row));
buttons[i][j].setBackground(Color.RED);
}
}
}
}
if (event.getSource().equals("List"))
{
JScrollPane[] scroll = new JScrollPane[flyers.size()];
for(int p = 0; p < flyers.size(); p++)
{
JTextArea text = new JTextArea(flyers.get(p).toString(), 10, 40);
scroll[p] = new JScrollPane(text);
}
for(int p = 0; p < flyers.size(); p++)
{
JOptionPane.showMessageDialog(null,scroll[p]);
}
}
}
}

how to import datas from excel to jTable?

JFileChooser fc = new JFileChooser();
int option = fc.showSaveDialog(NewJFrame1.this);
if(option == JFileChooser.APPROVE_OPTION){
String filename = fc.getSelectedFile().getName();
String path = fc.getSelectedFile().getParentFile().getPath();
int len = filename.length();
String ext = "";
String file = "";
if(len > 4){
ext = filename.substring(len-4, len);
}
if(ext.equals(".xls")){
file = path + "\\" + filename;
}else{
file = path + "\\" + filename + ".xls";
}
toExcel(jTable1, new File(file));
}
this is how i save my table to excel it works fine but i want to import these datas after i restart my program can someone help me about this ?

You can use Apache POI to export your JTable Data.
See how to do it here, in this thread:
apache poi: saving jtable to a file
Edit
I didn't read your question, if you're trying to IMPORT data, try these methods:
http://www.zfqjava.com/article/How-to-import-excel-into-JTabel.html

//Download and insert jxl-1.0.jar file
public class excelTojTable extends JFrame {
static JTable table;
static JScrollPane scroll;
// header is Vector contains table Column
static Vector headers = new Vector();
// Model is used to construct JTable
static DefaultTableModel model = null;
// data is Vector contains Data from Excel File
static Vector data = new Vector();
static JButton jbClick;
static JFileChooser jChooser;
static int tableWidth = 0; // set the tableWidth
static int tableHeight = 0; // set the tableHeight
public excelTojTable() {
super("Import Excel To JTable");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel buttonPanel = new JPanel();
buttonPanel.setBackground(Color.white);
jChooser = new JFileChooser();
jbClick = new JButton("Select Excel File");
buttonPanel.add(jbClick, BorderLayout.CENTER);
// Show Button Click Event
jbClick.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent arg0) {
jChooser.showOpenDialog(null);
File file = jChooser.getSelectedFile();
if (!file.getName().endsWith("xls")) {
JOptionPane.showMessageDialog(null,
"Please select only Excel file.",
"Error", JOptionPane.ERROR_MESSAGE);
} else {
fillData(file);
model = new DefaultTableModel(data,
headers);
tableWidth = model.getColumnCount()
* 150;
tableHeight = model.getRowCount()
* 25;
table.setPreferredSize(new Dimension(
tableWidth, tableHeight));
table.setModel(model);
}
}
});
table = new JTable();
table.setAutoCreateRowSorter(true);
model = new DefaultTableModel(data, headers);
table.setModel(model);
table.setBackground(Color.pink);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.setEnabled(false);
table.setRowHeight(25);
table.setRowMargin(4);
tableWidth = model.getColumnCount() * 150;
tableHeight = model.getRowCount() * 25;
table.setPreferredSize(new Dimension(
tableWidth, tableHeight));
scroll = new JScrollPane(table);
scroll.setBackground(Color.pink);
scroll.setPreferredSize(new Dimension(300, 300));
scroll.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
getContentPane().add(buttonPanel,
BorderLayout.NORTH);
getContentPane().add(scroll,
BorderLayout.CENTER);
setSize(600, 600);
setResizable(true);
setVisible(true);
}
/**
* Fill JTable with Excel file data.
*
* #param file file :contains xls file to display in jTable
*/
void fillData(File file) {
Workbook workbook = null;
try {
try {
workbook = Workbook.getWorkbook(file);
} catch (IOException ex) {
Logger.getLogger(
excelTojTable.class.
getName()).log(Level.SEVERE,
null, ex);
}
Sheet sheet = workbook.getSheet(0);
headers.clear();
for (int i = 0; i < sheet.getColumns(); i++) {
Cell cell1 = sheet.getCell(i, 0);
headers.add(cell1.getContents());
}
data.clear();
for (int j = 1; j < sheet.getRows(); j++) {
Vector d = new Vector();
for (int i = 0; i < sheet.getColumns(); i++) {
Cell cell = sheet.getCell(i, j);
d.add(cell.getContents());
}
d.add("\n");
data.add(d);
}
} catch (BiffException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new excelTojTable();
}
}

try {
jxl.Workbook workbook = jxl.Workbook.getWorkbook(file);
jxl.Sheet sheet = workbook.getSheet(0);
headers.clear();
for (int i = 0; i < sheet.getColumns(); i++) {
jxl.Cell cell1 = sheet.getCell(i, 0);
headers.add(cell1.getContents());
}
data.clear();
for (int j = 1; j < sheet.getRows(); j++) {
Vector d = new Vector();
for (int i = 0; i < sheet.getColumns(); i++) {
jxl.Cell cell = sheet.getCell(i, j);
d.add(cell.getContents());
}
d.add("\n");
data.add(d);
}
}
catch (Exception e) {
e.printStackTrace();
}
this is how i solved my problem i hope it helps someone else

JScrollPane not working horizontally

Hi. I need some help. JScrollPane working vertically good but horizontally not. And I cant find whats the problem. I know that its a little big project and there is a lot of confusing codes but I cant delete any of that function.
public final class Salary extends javax.swing.JFrame {
private SalaryTableModel tableModel;
public int selectedRow = -1;
public static String bolme;
public static String ay;
public static int il = 0;
private final String selectedItem_Bolme;
private final String selectedItem_Ay;
private final int selectedItem_Il;
private List<Pojo> sortedList;
public TableColumn date;
public static int bolmeId = 0;
public static String ad;
public static int row2;
public void visible(String bolme2, String ay2, int il2) {
il = il2;
ay = ay2;
bolme = bolme2;
new Salary().setVisible(true);
}
public RXTable autoResizeColWidth(RXTable table, SalaryTableModel model) {
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.setModel(model);
int margin = 5;
for (int i = 0; i < table.getColumnCount(); i++) {
int vColIndex = i;
DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
TableColumn col = colModel.getColumn(vColIndex);
int width;
TableCellRenderer renderer = col.getHeaderRenderer();
if (renderer == null) {
renderer = table.getTableHeader().getDefaultRenderer();
}
Component comp = renderer.getTableCellRendererComponent(table, col.getHeaderValue(), false, false, 0, 0);
width = comp.getPreferredSize().width;
for (int r = 0; r < table.getRowCount(); r++) {
renderer = table.getCellRenderer(r, vColIndex);
comp = renderer.getTableCellRendererComponent(table, table.getValueAt(r, vColIndex), false, false,
r, vColIndex);
width = Math.max(width, comp.getPreferredSize().width);
}
width += 2 * margin;
col.setPreferredWidth(width);
}
((DefaultTableCellRenderer) table.getTableHeader().getDefaultRenderer()).setHorizontalAlignment(
SwingConstants.LEFT);
table.getTableHeader().setReorderingAllowed(false);
return table;
}
public Salary() {
initComponents();
Toolkit.getDefaultToolkit().getImage(getClass().getResource("/images/db.png"));
setDefaultCloseOperation(EXIT_ON_CLOSE);
List<Pojo> model = DBO.findBolme();
HashSet hs = new HashSet();
ArrayList al = new ArrayList();
model.stream().forEach((model1) -> {
hs.add(model1.getBolme());
});
al.addAll(hs);
comboBolme.addItem("Butun Bolmeler");
al.stream().forEach((al1) -> {
comboBolme.addItem(al1);
bolmeId++;
});
comboBolme.removeItem("null");
if (bolme == null) {
comboBolme.setSelectedIndex(0);
} else {
comboBolme.setSelectedItem(bolme);
}
if (ay == null) {
comboAy.setSelectedIndex(0);
} else {
comboAy.setSelectedItem(ay);
}
List<Pojo> model2 = DBO.findIl();
HashSet hs2 = new HashSet();
ArrayList al2 = new ArrayList();
model2.stream().forEach((model1) -> {
hs2.add(model1.getIl());
});
al2.addAll(hs2);
comboIl.addItem(0000);
al2.stream().forEach((al1) -> {
comboIl.addItem(al1);
});
comboIl.removeItem(0);
if (il == 0) {
comboIl.setSelectedIndex(0);
} else {
comboIl.setSelectedItem(il);
}
selectedItem_Bolme = (String) comboBolme.getSelectedItem();
selectedItem_Ay = (String) comboAy.getSelectedItem();
selectedItem_Il = Integer.parseInt(comboIl.getSelectedItem().toString());
Pojo tempVar;
sortedList = DBO.salary_Find(selectedItem_Bolme, selectedItem_Ay, selectedItem_Il);
for (int i = 0; i < sortedList.size(); i++) {
if (sortedList.get(i).getIsleyir() == 1) {
sortedList.remove(i);
i--;
}
}
for (int i = 0; i < sortedList.size(); i++) {
for (int j = 0; j < sortedList.size(); j++) {
if (sortedList.get(i).getCem() == sortedList.get(j).getCem()) {
}
if (sortedList.get(i).getCem() > sortedList.get(j).getCem()) {
tempVar = sortedList.get(j);
sortedList.set(j, sortedList.get(i));
sortedList.set(i, tempVar);
}
}
}
tableModel = new SalaryTableModel(sortedList) {
#Override
public boolean isCellEditable(int row, int column) {
ad = tableModel.getTopic(row).getAd();
selectedRow = tableModel.getTopic(row).getId();
row2 = row;
return (column != 0) && (column != 17);
}
};
table.setModel(tableModel);
table = autoResizeColWidth(table, tableModel);
table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM");
DatePickerCellEditor datePicker = new DatePickerCellEditor(formatter);
datePicker.setFormats(formatter);
date = table.getColumnModel().getColumn(18);
date.setCellEditor(datePicker);
table = new RXTable(tableModel);
JScrollPane pane = new JScrollPane(table);
add(pane);
table.setSelectAllForEdit(true);
table.getColumnModel().getColumn(0).setMinWidth(100);
table.getColumnModel().getColumn(1).setMinWidth(100);
table.getColumnModel().getColumn(2).setMinWidth(100);
table.getColumnModel().getColumn(3).setMinWidth(100);
table.getColumnModel().getColumn(4).setMinWidth(100);
table.getColumnModel().getColumn(5).setMinWidth(100);
table.getColumnModel().getColumn(6).setMinWidth(100);
table.getColumnModel().getColumn(7).setMinWidth(100);
table.getColumnModel().getColumn(8).setMinWidth(100);
table.getColumnModel().getColumn(9).setMinWidth(100);
table.getColumnModel().getColumn(10).setMinWidth(100);
table.getColumnModel().getColumn(11).setMinWidth(100);
table.getColumnModel().getColumn(12).setMinWidth(100);
table.getColumnModel().getColumn(13).setMinWidth(100);
table.getColumnModel().getColumn(14).setMinWidth(100);
table.getColumnModel().getColumn(15).setMinWidth(100);
table.getColumnModel().getColumn(16).setMinWidth(100);
table.getColumnModel().getColumn(17).setMinWidth(100);
table.getColumnModel().getColumn(18).setMinWidth(100);
table.getColumnModel().getColumn(19).setMinWidth(100);
table.getColumnModel().getColumn(20).setMinWidth(100);
table.getColumnModel().getColumn(21).setMinWidth(100);
table.getColumnModel().getColumn(21).setMaxWidth(10000);
setLocationRelativeTo(null);
double x = 0;
for (int i = 0; i < tableModel.getRowCount(); i++) {
x += tableModel.getTopic(i).getArtim();
}
lblArtiminCemi.setText(String.valueOf((x)));
double y = 0;
for (int i = 0; i < tableModel.getRowCount(); i++) {
y += tableModel.getTopic(i).getCem();
}
lblTotal.setText(String.valueOf((y)));
comboBolme.addActionListener((ActionEvent e) -> {
String selectedBolme = (String) comboBolme.getSelectedItem();
visible(selectedBolme, ay, il);
setVisible(false);
});
comboAy.addActionListener((ActionEvent e) -> {
String selectedAy = (String) comboAy.getSelectedItem();
visible(bolme, selectedAy, il);
setVisible(false);
});
comboIl.addActionListener((ActionEvent e) -> {
int selectedIl = Integer.parseInt(comboIl.getSelectedItem().toString());
visible(bolme, ay, selectedIl);
setVisible(false);
});
table.getModel().addTableModelListener((TableModelEvent e) -> {
int row = e.getFirstRow();
int column = e.getColumn();
TableModel model1 = (TableModel) e.getSource();
String columnName = model1.getColumnName(column);
Object value = model1.getValueAt(row, column);
Pojo temp;
sortedList = DBO.salary_Find(selectedItem_Bolme, selectedItem_Ay, selectedItem_Il);
for (int i = 0; i < sortedList.size(); i++) {
if (sortedList.get(i).getIsleyir() == 1) {
sortedList.remove(i);
i--;
}
}
for (int i = 0; i < sortedList.size(); i++) {
for (int j = 0; j < sortedList.size(); j++) {
if (sortedList.get(i).getCem() > sortedList.get(j).getCem()) {
temp = sortedList.get(j);
sortedList.set(j, sortedList.get(i));
sortedList.set(i, temp);
}
}
}
List<Pojo> list = sortedList;
Pojo data = list.get(row);
switch (column) {
case 0:
data.setId((int) value);
break;
case 1:
data.setAd((String) value);
break;
case 2:
data.setCins((int) value);
break;
case 3:
data.setBank((Double) value);
data.setCem(data.getBank() + data.getIlk_maas() + data.getSon_maas() + data.getArtim());
break;
case 4:
data.setIlk_maas((Double) value);
data.setCem(data.getBank() + data.getIlk_maas() + data.getSon_maas() + data.getArtim());
break;
case 5:
data.setSon_maas((Double) value);
data.setCem(data.getBank() + data.getIlk_maas() + data.getSon_maas() + data.getArtim());
break;
case 6:
data.setArtim((Double) value);
data.setCem(data.getBank() + data.getIlk_maas() + data.getSon_maas() + data.getArtim());
break;
case 7:
data.setCem((Double) value);
break;
case 8:
data.setElave_is((int) value);
break;
case 9:
data.setMukafatlandirma((Double) value);
break;
case 10:
data.setQayib_gunu((int) value);
break;
case 11:
data.setDetal_xetasi((Double) value);
break;
case 12:
data.setSatin_alma((Double) value);
break;
case 13:
data.setBolme(value.toString().toUpperCase());
break;
case 14:
data.setAy((String) value);
break;
case 15:
data.setIl((Integer) value);
break;
case 16:
data.setIsleyir((int) value);
break;
case 17:
data.setNe_qeder_isleyib((String) value);
break;
case 18:
try {
String time = value.toString();
Date date3 = new Date();
SimpleDateFormat format2 = new SimpleDateFormat("yyyy/MM");
Date date4 = format2.parse(time);
SimpleDateFormat format3 = new SimpleDateFormat("yyyy/MM");
data.setBaslama_tarixi(format3.format(date4));
Calendar cal = Calendar.getInstance();
cal.setTime(date3);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(date4);
int diffYear = cal.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
int diffMonth = cal.get(Calendar.MONTH) - cal2.get(Calendar.MONTH);
if (diffMonth < 0) {
diffMonth += 12;
diffYear--;
}
data.setNe_qeder_isleyib(diffYear + " il " + diffMonth + " ay");
} catch (NumberFormatException | IndexOutOfBoundsException | ParseException ex) {
Logger.getLogger(Salary.class.getName()).log(Level.SEVERE, null, ex);
}
break;
case 19:
data.setBorc((Double) value);
break;
case 20:
data.setYekun_maas((Double) value);
data.setCem(data.getBank() + data.getIlk_maas() + data.getSon_maas() + data.getArtim());
data.setYekun_maas(data.getCem() - data.getBorc()
- ((data.getCem() / 26) * data.getQayib_gunu()) - data.getDetal_xetasi()
+ data.getSatin_alma() + ((data.getCem() / 26) * data.getElave_is()));
break;
case 21:
data.setQeyd((String) value);
break;
}
DBO.salary_Update(data, selectedRow);
visible(bolme, ay, il);
setVisible(false);
});
}`

If what you want is to display the full text of the cells instead of an abbreviation, you can use the Table Column Adjuster. e.g.:
String[] columnNames = {"Colum1", "Colum2", "Colum2"};
String[][] data = {
{"ABCDEFGHIJKLMNOPQRSTUVWXYZ", "-", "-"},
{"-", "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "-"},
{"-", "-", "ABCDEFGHIJKLMNOPQRSTUVWXYZ"}
};
TableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable();
table.setModel(model);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
TableColumnAdjuster tca = new TableColumnAdjuster(table);
tca.adjustColumns();
JScrollPane pane = new JScrollPane(table);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(pane);
frame.setSize(400, 300);
frame.setVisible(true);
You can get the code for the class TableColumnAdjuster from http://www.camick.com/java/source/TableColumnAdjuster.java

Found a way )
table.setModel(tableModel);
table = autoResizeColWidth(table, tableModel);
//table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM");
DatePickerCellEditor datePicker = new DatePickerCellEditor(formatter);
datePicker.setFormats(formatter);
date = table.getColumnModel().getColumn(18);
date.setCellEditor(datePicker);
table = new RXTable(tableModel) {
#Override
public boolean getScrollableTracksViewportWidth() {
return getPreferredSize().width < getParent().getWidth();
}
};
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
JScrollPane pane = new JScrollPane(table);
add(pane);
//table.setSelectAllForEdit(true);
//table.getColumnModel().getColumn(0).setMinWidth(100);
//table.getColumnModel().getColumn(1).setMinWidth(100);
//....
//table.getColumnModel().getColumn(21).setMinWidth(100);
//table.getColumnModel().getColumn(21).setMaxWidth(10000);
setLocationRelativeTo(null);

Insert data to MySQL table from JTable in Java GUI

I've made a GUI in Java that connects with a MySQL server and inserts,deletes,updates data. I have a section on this GUI that you can write in a text area a MySQL query and the result is displayed on a Jtable. Everything works fine! I can print the data from the JTable or save them to a text file!
Now, I want to add another feature: When I double click on a specific cell, I would like to change the data of the JTable, and I want this data to be updated in the MySQL table with the click of a button as well.
I've searched all over the internet, but I can't find a good example or a good solution. The JTable I have is dynamic; that means that what ever query is inserted the data will be displayed with the quired column names and data
Here is the code:
ArrayList columnNames = new ArrayList();
ArrayList data = new ArrayList();
data_connector getdata1 = new data_connector();
host = getdata1.getHost();
username = getdata1.getUsername();
password1 = getdata1.getPassword();
mysql_command = getdata1.getMysql_command();
command_name = getdata1.getCommand_name();
setTitle(command_name);
// Connect to an MySQL Database, run query, get result set
String url = "jdbc:mysql://"+host+":3306/xxxxx";
String userid = username;
String password = password1;
String sql = mysql_command;
// Java SE 7 has try-with-resources
// This will ensure that the sql objects are closed when the program
// is finished with them
try (Connection connection = DriverManager.getConnection( url, userid, password );
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery( sql ))
{
ResultSetMetaData md = rs.getMetaData();
int columns = md.getColumnCount();
// Get column names
for (int i = 1; i <= columns; i++)
columnNames.add(md.getColumnName(i));
// Get row data
while (rs.next())
{
ArrayList row = new ArrayList(columns);
for (int i = 1; i <= columns; i++)
row.add(rs.getObject(i));
data.add(row);
}
}
catch (SQLException e)
{
System.out.println(e.getMessage());
JOptionPane.showMessageDialog(null, e.getMessage());
mysql_fail_flag = 1;
}
// Create Vectors and copy over elements from ArrayLists to them
// Vector is deprecated but I am using them in this example to keep
// things simple - the best practice would be to create a custom defined
// class which inherits from the AbstractTableModel class
Vector columnNamesVector = new Vector();
Vector dataVector = new Vector();
for (int i = 0; i < data.size(); i++)
{
ArrayList subArray = (ArrayList)data.get(i);
Vector subVector = new Vector();
for (int j = 0; j < subArray.size(); j++)
subVector.add(subArray.get(j));
dataVector.add(subVector);
}
for (int i = 0; i < columnNames.size(); i++ )
columnNamesVector.add(columnNames.get(i));
contentPane.setLayout(null);
// Create table with database data
table = new JTable(dataVector, columnNamesVector)
{
public Class getColumnClass(int column)
{
for (int row = 0; row < getRowCount(); row++)
{
Object o = getValueAt(row, column);
if (o != null)
return o.getClass();
}
return Object.class;
}
};
// table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scrollPane.setBounds(5, 5, xframeWidth-20, yframeHeight-70);
getContentPane().add(scrollPane);
JPanel buttonPanel = new JPanel();
buttonPanel.setBounds(5, 856, 1574, 1);
getContentPane().add(buttonPanel);
buttonPanel.setLayout(null);

In the form you actually create your JTable, I don't think this is easy. What you want to do is subclassing AbstractTableModel, and overwrite the setValueAt() method. You subclass could look like this:
class MyModel extends AbstractTableModel
{
private ResultSet result;
private ResultSetMetaData metadata;
public MyModel (ResultSet rs)
{
super();
result = rs; // mustn't be null, maybe check and throw NPE
metadata = result.getMetaData();
}
public int getRowCount ()
{
result.last();
return result.getRow(); // See http://stackoverflow.com/questions/8292256/get-number-of-rows-returned-by-resultset-in-java
}
public int getColumnCount ()
{
return metadata.getColumnCount();
}
public Object getValueAt (int row, int col)
{
result.absolute(row);
return result.getString(col);
}
public String getColumnName (int col)
{
return metadata.getColumnName(col);
}
public void setValueAt (Object value, int row, int col)
{
result.absolute(row);
result.updateObject(col, value);
}
}
I haven't tested it, but your code must look like this. Note that you mustn't close the Statement, Connection or the ResultSet (or create a new ResultSet cause some db drivers like MySQL destroy the old one) to prevent any Exceptions.

OK!!! i managed to update every cell separately by just editing the cell and then pressing enter!
This works only for 1 table but its ok for my project! Here is the code...
private class RowColumnListSelectionListener implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
rowIndexStart = table.getSelectedRow();
rowIndexEnd = table.getSelectionModel().getMaxSelectionIndex();
colIndexStart = table.getSelectedColumn();
colIndexEnd = table.getColumnModel().getSelectionModel().getMaxSelectionIndex();
for ( i = rowIndexStart; i <= rowIndexEnd; i++) {
for ( j = colIndexStart; j <= colIndexEnd; j++) {
Object cell_value = table.getValueAt(i,j);
Cell_value_string_before = (String) cell_value;
}
}
}
}
public test_table() {
setIconImage(Toolkit.getDefaultToolkit().getImage(test_table.class.getResource("/com/sun/java/swing/plaf/windows/icons/Computer.gif")));
//setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//setBounds(100, 100, 688, 589);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
xframeWidth = screenSize.width; //dynamic size for frame x-axes
yframeHeight = screenSize.height; //dynamic size for frame y-axes
int xlocation = xframeWidth*2; //dynamic location x-axes
int ylocation = yframeHeight*2; //dynamic location y-axes
setBounds(0,0, xframeWidth, yframeHeight);
setResizable(false);
JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar);
JMenu mnNewMenu = new JMenu("Αρχείο");
menuBar.add(mnNewMenu);
JMenuItem mntmNewMenuItem_1 = new JMenuItem("Εξαγωγή σε .txt αρχείο");
mntmNewMenuItem_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser =new JFileChooser();
fileChooser.setDialogTitle("Δημιουργία αρχείου .txt");
FileNameExtensionFilter filter = new FileNameExtensionFilter(".txt", "text");
fileChooser.setFileFilter(filter);
int returnVal = fileChooser.showSaveDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
try {
File file = fileChooser.getSelectedFile();
File newfile = new File(file.getPath()+".txt");
// PrintWriter os = new PrintWriter(file);
FileWriter fw = new FileWriter(newfile,true); //filewriter
BufferedWriter bw = new BufferedWriter(fw); //buffered writer
PrintWriter os = new PrintWriter(bw, true);
os.print("");
for (int col = 0; col < table.getColumnCount(); col++) {
os.print(table.getColumnName(col) + "\t");
os.print(";");
}
os.println("");
os.println("");
for (int row = 0; row < table.getRowCount(); row++) {
for (int col = 0; col < table.getColumnCount(); col++) {
//os.print(table.getColumnName(col) + "\t");
// os.print(": ");
os.print(table.getValueAt(row, col) + "\t");
os.print(";");
// os.print(table.getRowCount() + "\t");
}
os.println("");
}
os.close();
System.out.println("Done!");
}
catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
});
mnNewMenu.add(mntmNewMenuItem_1);
JMenuItem mntmNewMenuItem_2 = new JMenuItem("Εκτύπωση");
mntmNewMenuItem_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
if (! table.print()) {
System.err.println("User cancelled printing");
}
} catch (java.awt.print.PrinterException e1) {
System.err.format("Cannot print %s%n", e1.getMessage());
}
}
});
mnNewMenu.add(mntmNewMenuItem_2);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
ArrayList columnNames = new ArrayList();
ArrayList data = new ArrayList();
// data_connector getdata1 = new data_connector();
// host = getdata1.getHost();
// username = getdata1.getUsername();
// password1 = getdata1.getPassword();
// mysql_command = getdata1.getMysql_command();
// command_name = getdata1.getCommand_name();
//setTitle(command_name);
// Connect to an MySQL Database, run query, get result set
String url = "jdbc:mysql://localhost:3306/υπαλληλοι απε-μπε";
String userid = "ziorange";
String password = "120736";
String sql = "SELECT * FROM `ΥΠΑΛΛΗΛΟΙ 2 test`";
//String sql = "SELECT `ΚΩΔΙΚΟΣ`,`ΕΠΩΝΥΜΟ`,`ΟΝΟΜΑ`,`ΟΝΟΜΑ ΠΑΤΡΟΣ`,`ΑΜΚΑ`,`ΑΡΙΘΜΟΣ ΜΗΤΡΩΟΥ ΙΚΑ (αν υπάρχει)` FROM `ΥΠΑΛΛΗΛΟΙ 2` WHERE `ΚΩΔΙΚΟΣ`>'0' AND `ΗΜΕΡΟΜΗΝΙΑ ΑΠΟΧΩΡΗΣΗΣ`>'2009-12-31 00:00:00' OR `ΕΙΔΙΚΟΤΗΤΑ` !='ΑΝΤΑΠΟΚΡΙΤΗΣ ΕΞ' AND `ΛΟΓΟΣ ΑΠΟΧΩΡΗΣΗΣ`='-' ORDER BY `ΕΠΩΝΥΜΟ`";
// Java SE 7 has try-with-resources
// This will ensure that the sql objects are closed when the program
// is finished with them
try
{
connection = DriverManager.getConnection( url, userid, password );
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery( sql );
ResultSetMetaData md = rs.getMetaData();
int columns = md.getColumnCount();
// Get column names
for (int i = 1; i <= columns; i++)
{
columnNames.add( md.getColumnName(i) );
}
// Get row data
while (rs.next())
{
ArrayList row = new ArrayList(columns);
for (int i = 1; i <= columns; i++)
{
row.add( rs.getObject(i) );
}
data.add( row );
}
}
catch (SQLException e)
{
//
System.out.println( e.getMessage() );
JOptionPane.showMessageDialog(null, e.getMessage() );
mysql_fail_flag=1;
}
// Create Vectors and copy over elements from ArrayLists to them
// Vector is deprecated but I am using them in this example to keep
// things simple - the best practice would be to create a custom defined
// class which inherits from the AbstractTableModel class
Vector columnNamesVector = new Vector();
Vector dataVector = new Vector();
for (int i = 0; i < data.size(); i++)
{
ArrayList subArray = (ArrayList)data.get(i);
Vector subVector = new Vector();
for (int j = 0; j < subArray.size(); j++)
{
subVector.add(subArray.get(j));
}
dataVector.add(subVector);
}
for (int i = 0; i < columnNames.size(); i++ )
columnNamesVector.add(columnNames.get(i));
contentPane.setLayout(null);
// Create table with database data
table = new JTable(dataVector, columnNamesVector)
{
public Class getColumnClass(int column)
{
for (int row = 0; row < getRowCount(); row++)
{
Object o = getValueAt(row, column);
if (o != null)
{
return o.getClass();
}
}
return Object.class;
}
};
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.setColumnSelectionAllowed(true); //epilegei to kathe keli ksexwrista
table.getSelectionModel().addListSelectionListener(
new RowColumnListSelectionListener());
table.getDefaultEditor(String.class).addCellEditorListener(
new CellEditorListener() {
public void editingCanceled(ChangeEvent e) {
System.out.println("editingCanceled");
}
public void editingStopped(ChangeEvent e) {
System.out.println("editingStopped: apply additional action");
rowIndexStart = table.getSelectedRow();
rowIndexEnd = table.getSelectionModel().getMaxSelectionIndex();
colIndexStart = table.getSelectedColumn();
colIndexEnd = table.getColumnModel().getSelectionModel().getMaxSelectionIndex();
for ( i = rowIndexStart; i <= rowIndexEnd; i++) {
for ( j = colIndexStart; j <= colIndexEnd; j++) {
Object cell_value = table.getValueAt(i,j);
Cell_value_string_after = (String) cell_value;
ia=i+1;
ja=j+1;
column_name_selected2 = table.getColumnName(ja-1);
}
}
if(Cell_value_string_before.equals(Cell_value_string_after)){
System.out.println("Do nothing");
}
else{
System.out.println("UPDATE DATABASE");
update_database();
}
}
});
JScrollPane scrollPane = new JScrollPane( table );
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scrollPane.setBounds(5, 5, xframeWidth-20, yframeHeight-70);
getContentPane().add( scrollPane );
JPanel buttonPanel = new JPanel();
buttonPanel.setBounds(5, 856, 1574, 1);
getContentPane().add( buttonPanel );
buttonPanel.setLayout(null);
}
public void update_database(){
Object get_lastname = table.getValueAt(ia-1, 5);
String get_lastname_string = (String) get_lastname;
Object get_name = table.getValueAt(ia-1, 6);
String get_name_string=(String) get_name;
System.out.println("RESULT= "+ column_name_selected2 + " - "+Cell_value_string_after+ " - " + get_lastname_string+ " - " + get_name_string );
if(column_name_selected2.equals("ΕΠΩΝΥΜΟ") || column_name_selected2.equals("ΟΝΟΜΑ")){
JOptionPane.showMessageDialog(null, "To επώνυμο και το όνομα δεν μπορεί να αλλάξει","Μήνυμα:",JOptionPane.WARNING_MESSAGE);
}
else{
try {
PreparedStatement update = (PreparedStatement) connection.prepareStatement
("UPDATE `ΥΠΑΛΛΗΛΟΙ 2 TEST` SET `" +column_name_selected2+"` = ? WHERE ΕΠΩΝΥΜΟ= ? AND ΟΝΟΜΑ =? ");
update.setString(1,Cell_value_string_after);
update.setString(2,get_lastname_string);
update.setString(3,get_name_string);
int all_edit_query_status=update.executeUpdate();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}

java.lang.IndexOutOfBoundsException: Index: 6, Size: 6 JAVA, ARRAY

I realize this is an unbelievably common issue and have looked very very thoroughly but have had no luck! It seems I am having an outOfBounds Exception issue. My code is as follows wuth errors just after! Thanks again :)
UPDATE:
Thanks for all of your many fast responses. Although it says there's an issue with Analysis Panel, I didn't know exactly if this was the cause as I have other classes which use it with no issues! But below is the other code. Thanks again!
public class AnalysisPanel extends JPanel {
private JTextArea overview_text = GuiComponentGenerator.getJTextArea("");
private JTextArea csv_text = GuiComponentGenerator.getJTextArea("");
private JComboBox analyser_choices;
private String[] analyser_class_names;
private LinkedHashMap<String, ImageAnalysis> analyser_outputs = new LinkedHashMap();
private JTextField[] weka_directory_texts;
private JTextField[] weka_tag_texts;
private JTextField weka_output_file_path_text = GuiComponentGenerator
.getJTextField("");
private JTextField weka_relation_text = GuiComponentGenerator
.getJTextField("");
public AnalysisPanel() {
GuiComponentGenerator.setLook(this);
analyser_class_names = ResourceAndClassDirectories
.getClassNamesInDirectory(ResourceAndClassDirectories.IMAGE_ANALYSERS_CLASS_STEM);
ArrayList<String> choices = new ArrayList(
Arrays.asList(analyser_class_names));
choices.add(0, "All");
analyser_choices = GuiComponentGenerator.getJComboBox(choices);
analyser_choices.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
updateTextBoxes();
}
});
setLayout(new BorderLayout());
add(BorderLayout.NORTH,
GuiComponentGenerator.getJPanel(analyser_choices));
add(BorderLayout.CENTER, getTextsPanel());
add(BorderLayout.SOUTH, getWekaPanel());
}
private JPanel getWekaPanel() {
JPanel weka_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
JPanel details_panel = GuiComponentGenerator.getJPanel(new GridLayout(
6, 1));
JPanel top_panel = GuiComponentGenerator
.getJPanel(new GridLayout(1, 2));
JPanel left_top_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
JPanel right_top_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
left_top_panel.add(BorderLayout.WEST, GuiComponentGenerator.getJLabel("Relation:"));
left_top_panel.add(BorderLayout.CENTER, weka_relation_text);
right_top_panel.add(BorderLayout.WEST, GuiComponentGenerator.getJLabel("Output to:"));
right_top_panel.add(BorderLayout.CENTER, weka_output_file_path_text);
top_panel.add(left_top_panel);
top_panel.add(right_top_panel);
weka_panel.add(BorderLayout.NORTH, top_panel);
weka_directory_texts = new JTextField[5];
weka_tag_texts = new JTextField[5];
JPanel labels_panel = GuiComponentGenerator.getJPanel(new GridLayout(1,
2));
labels_panel.add(GuiComponentGenerator.getCentreAlignedJLabel("Tag"));
labels_panel.add(GuiComponentGenerator
.getCentreAlignedJLabel("Image directory"));
details_panel.add(labels_panel);
for (int pos = 0; pos < 5; pos++)
details_panel.add(getDetailsPanel(pos));
weka_panel.add(BorderLayout.NORTH, top_panel);
weka_panel.add(BorderLayout.CENTER, details_panel);
JPanel weka_bordered_panel = GuiComponentGenerator
.getLeftBorderedJPanel(weka_panel, "Weka");
return weka_bordered_panel;
}
private JPanel getDetailsPanel(int pos) {
JPanel details_panel = GuiComponentGenerator.getJPanel(new GridLayout(
1, 2));
final JTextField weka_directory_text = GuiComponentGenerator
.getJTextField("");
JTextField weka_tag_text = GuiComponentGenerator.getJTextField("");
weka_directory_texts[pos] = weka_directory_text;
weka_tag_texts[pos] = weka_tag_text;
JPanel right_panel = GuiComponentGenerator
.getJPanel(new BorderLayout());
right_panel.add(BorderLayout.CENTER, weka_directory_text);
JButton choose_directory_button = GuiComponentGenerator
.getJButton(GuiComponentGenerator.FILE_DIALOG_ICON);
right_panel.add(BorderLayout.EAST, choose_directory_button);
choose_directory_button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
File directory = FileChooserDialog.getFile(
ResourceAndClassDirectories.SOURCE_DIRECTORY, "", true);
if (directory != null)
weka_directory_text.setText(directory.getPath());
}
});
details_panel.add(weka_tag_text);
details_panel.add(right_panel);
return details_panel;
}
public String[] getWekaRunDetails() {
String[] wrd = { weka_relation_text.getText(),
weka_output_file_path_text.getText() };
return wrd;
}
public ArrayList<String[]> getWekaImageDetails() {
ArrayList<String[]> image_details = new ArrayList();
for (int pos = 0; pos < 5; pos++) {
String[] details = { weka_directory_texts[pos].getText(),
weka_tag_texts[pos].getText() };
image_details.add(details);
}
return image_details;
}
private JPanel getTextsPanel() {
JPanel texts_panel = GuiComponentGenerator
.getJPanel(new BorderLayout());
csv_text.setRows(3);
csv_text.setFont(new Font("Courier", Font.PLAIN, 14));
texts_panel.add(BorderLayout.NORTH, GuiComponentGenerator
.getLeftBorderedJPanel(
GuiComponentGenerator.getJScrollPane(csv_text), "CSV"));
texts_panel.add(BorderLayout.CENTER, GuiComponentGenerator
.getLeftBorderedJPanel(
GuiComponentGenerator.getJScrollPane(overview_text),
"Overview"));
return texts_panel;
}
public String getChosenImageAnalyser() {
return (String) analyser_choices.getSelectedItem();
}
public void performAnalyses(final TaggedBufferedImage tbi) {
Thread thread = new Thread() {
public void run() {
analyser_outputs.clear();
String choice = (String) analyser_choices.getSelectedItem();
csv_text.setText("");
if (choice.equals("All")) {
for (String analyser_class_name : analyser_class_names)
performAnalysis(analyser_class_name, tbi);
} else
performAnalysis(choice, tbi);
updateTextBoxes();
}
};
thread.start();
}
private void updateTextBoxes() {
String overview = "";
String csv_headings = "|";
String csv_values = "|";
String choice = (String) analyser_choices.getSelectedItem();
for (String analyser_class_name : analyser_class_names) {
if (choice.equals("All") || choice.equals(analyser_class_name)) {
ImageAnalysis image_analysis = analyser_outputs
.get(analyser_class_name);
if (image_analysis != null) {
overview += analyser_class_name + "\n\n"
+ image_analysis.overview + "\n-----------------\n";
System.out.println("In Analysis Panel: image analsis csv headings " + image_analysis.csv_headings.size());
for (int pos = 0; pos < image_analysis.csv_headings.size(); pos++) {
String heading = image_analysis.csv_headings.get(pos);
String value = image_analysis.csv_values.get(pos);
while (heading.length() < value.length())
heading += " ";
while (value.length() < heading.length())
value += " ";
csv_values += value + "|";
csv_headings += heading + "|";
}
}
}
}
overview_text.setText(overview);
csv_text.setText(csv_headings + "\n" + csv_values);
}
private void performAnalysis(String analyser_class_name,
TaggedBufferedImage tbi) {
try {
overview_text.setText("Analysing " + analyser_class_name);
Class c = Class
.forName(ResourceAndClassDirectories.IMAGE_ANALYSERS_CLASS_STEM
+ "." + analyser_class_name);
ImageAnalyserInterface analyser = (ImageAnalyserInterface) c
.newInstance();
ImageAnalysis image_analysis = analyser.analyseImage(tbi);
analyser_outputs.put(analyser_class_name, image_analysis);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
Update: Now working, although the issue was in the below, it needed to be changed in the Colour file itself!
Thanks all :)

If there are 6 elements in the array, then index 5 will be the final index, as it is zero indexed - that is, 0,1,2,3,4,5 is 6 elements

Well based on the title you are trying to access index 6 in an array of size 6. This is not possible since arrays in Java run from index 0 to size-1.
Your max possible index is therefore 5 in an array of size 6.