Java: Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException


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public class MainFrame extends JFrame {
public DefaultTableModel historyModel;
public DefaultTableModel dataModel;
public JTable historyTable;
public JTable dataTable;
public JTableHeader header;
private void createUI() {
browsersTabbedPane = new BrowsersTabbedPane();
add(browsersTabbedPane.getTabPane(), CENTER);
addDefaultBrowserComponentForTabbedPane();
createActions();
add(createToolBar(), BorderLayout.NORTH);
add(createStatusBar(), BorderLayout.SOUTH);
add(createDataView(dataModel,dataTable, header), BorderLayout.PAGE_END);

Related to : Java: Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
Java: Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
Java

public class MainFrame extends JFrame {
public DefaultTableModel historyModel;
public DefaultTableModel dataModel;
public JTable historyTable;
public JTable dataTable;
public JTableHeader header;
private void createUI() {
browsersTabbedPane = new BrowsersTabbedPane();
add(browsersTabbedPane.getTabPane(), CENTER);
addDefaultBrowserComponentForTabbedPane();
createActions();
add(createToolBar(), BorderLayout.NORTH);
add(createStatusBar(), BorderLayout.SOUTH);
add(createDataView(dataModel,dataTable, header), BorderLayout.PAGE_END);
Java Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException error
Java

I have tried to go over this my self but i do not know how to resolve this.


I am getting this error when i try and run my addressBookUi class.


Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at addressBookUI.startComponents(addressBookUI.java:43)
at addressBookUI.<init>(addressBookUI.java:6)
at addressBookUI$2.run(addressBookUI.java:143)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.ru
Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
Java

I'm having an issue, when I run my application and click over the JMenuBar I get the following exception, I'm not sure why because no line at the exception point to my code, those lines are all from JavaLibraries.
The exception points over the Event Handler/Dispatche... so I gues maybe I'm not setting a configuration over the JMenuBar, the JMenu and the JMenuItem.


Basically my code:


menubarsita = new JMyMenuBar(); // Instanciate the JMenuBar
session.buildMenu(menubarsita,this); //Add the JMenu and the JMenuItems
this.setJMenuBar(menubarsita); // Add the menu bar to the JFrame

The code fo

eclipse : Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
Java

(I am new to java so please don't make your answer TOOOOOOO CONFUSING!!!! :P.)
I just have created a game using eclipse and I really wanted to make a fun game! I looked off of some tutorials that helped me create this. The thing is I can't move in the game. I would really appreciate help!
Here is the error I recieve while trying to move using wasd in my game:


Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at StickFireBasic.KeyAdapt.keyReleased(KeyAdapt.java:19)
at java.awt.Component.processKeyEvent(Unknown Source)
at javax.swing.JComponent.processKeyEvent(Unknown Source)
at java.awt.Component


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