1. #1

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    JAVA hulp bij fout

    ik krijg de volgende foutmelding als ik een nieuw form wil openen via een knop maar snap er niets meer van.
    Dus graag iemand die me even terug in de goede richting duwt.

    code :

    public void vormingform()

    {
    Vormingen b= new Vormingen();
    b.setExtendedState(JFrame.MAXIMIZED_BOTH);
    b.setVisible(true);
    b.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE );

    }

    Error:


    Exception in thread "AWT-EventQueue-0" java.lang.Error: java.lang.reflect.InvocationTargetException
    at org.jdesktop.application.ApplicationAction.actionF ailed(ApplicationAction.java:859)
    at org.jdesktop.application.ApplicationAction.noProxy ActionPerformed(ApplicationAction.java:665)
    at org.jdesktop.application.ApplicationAction.actionP erformed(ApplicationAction.java:698)
    at javax.swing.AbstractButton.fireActionPerformed(Abs tractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed (AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultB uttonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseRe leased(BasicButtonListener.java:236)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEven tMulticaster.java:272)
    at java.awt.Component.processMouseEvent(Component.jav a:6263)
    at javax.swing.JComponent.processMouseEvent(JComponen t.java:3267)
    at java.awt.Component.processEvent(Component.java:602 8)
    at java.awt.Container.processEvent(Container.java:204 1)
    at java.awt.Component.dispatchEventImpl(Component.jav a:4630)
    at java.awt.Container.dispatchEventImpl(Container.jav a:2099)
    at java.awt.Component.dispatchEvent(Component.java:44 60)
    at java.awt.LightweightDispatcher.retargetMouseEvent( Container.java:4574)
    at java.awt.LightweightDispatcher.processMouseEvent(C ontainer.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Conta iner.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.jav a:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2475 )
    at java.awt.Component.dispatchEvent(Component.java:44 60)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java: 599)
    at java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:122)
    Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.jdesktop.application.ApplicationAction.noProxy ActionPerformed(ApplicationAction.java:662)
    ... 27 more
    Caused by: java.lang.UnsupportedOperationException: Not yet implemented
    at eindwerkinfovragen.Vormingen.<init>(Vormingen.java :51)
    at eindwerkinfovragen.MAINMENU.vormingform(MAINMENU.j ava:170)
    ... 32 more
    BUILD SUCCESSFUL (total time: 8 seconds)
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  2. #2

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    iets meer code zou wel mogen.

    nuja, die "Caused by: java.lang.UnsupportedOperationException: Not yet implemented" doet me vermoeden dat je een methode aanroept die je vergeten te implementeren bent.
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    no votes  

  3. #3
    forloRn_'s Avatar
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    Inderdaad. Kijk eens op lijn 170 van MAINMENU.java en het zal wel duidelijk worden.
    no votes  

  4. #4

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    ok, opgelost dank je
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