MYsql with a Java table

Question

I'm trying to use a Jtable to display a Table from a MySQL database....
But i keep getting an error, and dunno where i'm going wrong.
Here is my code:
import java.sql.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class IPgroep extends JFrame {
private Connection connection;
private JTable table;
public IPgroep()      throws
          ClassNotFoundException,
          SQLException,
          IllegalAccessException,
          InstantiationException
String url = "jdbc:mysql://localhost/IPMAN";
String username = "";
String password = "";
try {
          Class.forName("org.gjt.mm.mysql.Driver").newInstance();
connection = DriverManager.getConnection(
url, username, password );
catch ( ClassNotFoundException cnfex ) {
System.err.println(
"Failed to load JDBC/ODBC driver." );
cnfex.printStackTrace();
System.exit( 1 );
catch ( SQLException sqlex ) {
System.err.println( "Unable to connect" );
sqlex.printStackTrace();
getTable();
setSize( 450, 150 );
show();
private void getTable()
Statement statement;
ResultSet resultSet;
try {
String query = "SELECT * FROM ip WHERE ip.NetwerkAdres = '213.10.15.15'";
statement = connection.createStatement();
resultSet = statement.executeQuery( query );
displayResultSet( resultSet );
statement.close();
catch ( SQLException sqlex ) {
sqlex.printStackTrace();
private void displayResultSet( ResultSet rs )
throws SQLException
boolean moreRecords = rs.next();
if ( ! moreRecords ) {
JOptionPane.showMessageDialog( this,
"ResultSet contained no records" );
setTitle( "No records to display" );
return;
setTitle( "IPTOTAL table from IP" );
Vector columnHeads = new Vector();
Vector rows = new Vector();
try {
ResultSetMetaData rsmd = rs.getMetaData();
for ( int i = 1; i <= rsmd.getColumnCount(); ++i )
columnHeads.addElement( rsmd.getColumnName( i ) );
do {
rows.addElement( getNextRow( rs, rsmd ) );
} while ( rs.next() );
table = new JTable( rows, columnHeads );
JScrollPane scroller = new JScrollPane( table );
getContentPane().add(
scroller, BorderLayout.CENTER );
validate();
catch ( SQLException sqlex ) {
sqlex.printStackTrace();
private Vector getNextRow( ResultSet rs,
ResultSetMetaData rsmd )
throws SQLException
Vector currentRow = new Vector();
for ( int i = 1; i <= rsmd.getColumnCount(); ++i )
switch( rsmd.getColumnType( i ) ) {
case Types.VARCHAR:
currentRow.addElement( rs.getString( i ) );
break;
case Types.INTEGER:
currentRow.addElement(
new Long( rs.getLong( i ) ) );
break;
default:
System.out.println( "Type was: " +
rsmd.getColumnTypeName( i ) );
return currentRow;
public void shutDown()
try {
connection.close();
catch ( SQLException sqlex ) {
System.err.println( "Unable to disconnect" );
sqlex.printStackTrace();
public static void main( String args[] )     throws
          ClassNotFoundException,
          SQLException,
          IllegalAccessException,
          InstantiationException
final IPgroep app = new IPgroep();
app.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
app.shutDown();
System.exit( 0 );
and here is my error:
Type was: CHAR
Type was: CHAR
Type was: CHAR
Type was: CHAR
Type was: CHAR
Type was: CHAR
Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException: 6 >= 6
at java.util.Vector.elementAt(Vector.java:417)
at javax.swing.JTable$1.getValueAt(JTable.java:415)
at javax.swing.JTable.getValueAt(JTable.java:1711)
at javax.swing.JTable.prepareRenderer(JTable.java:3530)
at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:995)
at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:917)
at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:858)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:39)
at javax.swing.JComponent.paintComponent(JComponent.java:398)
at javax.swing.JComponent.paint(JComponent.java:739)
at javax.swing.JComponent.paintChildren(JComponent.java:523)
at javax.swing.JComponent.paint(JComponent.java:748)
at javax.swing.JViewport.paint(JViewport.java:668)
at javax.swing.JComponent.paintChildren(JComponent.java:523)
at javax.swing.JComponent.paint(JComponent.java:748)
at javax.swing.JComponent.paintChildren(JComponent.java:523)
at javax.swing.JComponent.paint(JComponent.java:748)
at javax.swing.JComponent.paintChildren(JComponent.java:523)
at javax.swing.JComponent.paint(JComponent.java:748)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:546)
at javax.swing.JComponent.paintChildren(JComponent.java:523)
at javax.swing.JComponent.paint(JComponent.java:719)
at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:23)
at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:
54)
at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:91
at java.awt.Container.paint(Container.java:963)
at sun.awt.RepaintArea.paint(RepaintArea.java:298)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:199)
at java.awt.Component.dispatchEventImpl(Component.java:2665)
at java.awt.Container.dispatchEventImpl(Container.java:1216)
at java.awt.Window.dispatchEventImpl(Window.java:918)
at java.awt.Component.dispatchEvent(Component.java:2499)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:336)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:134)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:96)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:88)
Thanx in advance

Answer 1

case Types.VARCHAR:
currentRow.addElement( rs.getString( i ) );
break;
case Types.INTEGER:
currentRow.addElement(
new Long( rs.getLong( i ) ) );You're getting a type mismatch error.
For example, rs.getString() would return String. No ? Why VARCHAR ?
and rs.getLong() would get Long, not integer. right ?
Your error is here. I wish I could tell you more.