JDBC ODBC.. (Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException)
- by enthudrives
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
PreparedStatement p1;
String s="insert into reg values(?,?)";
try {
p1 = conn.prepareStatement(s);
System.out.println("hi?");
p1.setString(1, num.getText());
p1.setString(2, name.getText());
p1.executeUpdate();
// TODO add your handling code here:
} catch (SQLException ex) {
Logger.getLogger(sample.class.getName()).log(Level.SEVERE, null, ex);
}
}
This is my insert module.. This works in my friend's laptop. But not in mine :(
I get the following error:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at sample.jButton1ActionPerformed(sample.java:197)
at sample.access$200(sample.java:20)
at sample$3.actionPerformed(sample.java:92)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Java Result: 1
PS: I am totally new to java. Is it a problem with my ODBC?
