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


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(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

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


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

The code fo

“Exception in thread ”AWT-EventQueue-0“ java.lang.NullPointerException”. I have no clue what I'm doing wrong
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I am making a calculator for an AP Computer Science Final. I built the GUI in Eclipse using Jigloo, and I quickly tried to learn about Action Listeners so you can hit the buttons to make numbers appear. The problems started occurring when I started enter the actual code to make calculations. I keep getting the following error:


Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at NewJFrame.<init>(NewJFrame.java:82)
at NewJFrame$1.run(NewJFrame.java:73)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Sou
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);


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