下面是错误信息,高手们帮帮忙,谢谢了 :)
Exception occurred during event dispatching:
java.lang.NullPointerException
at HelloUniverse.destroy(HelloUniverse.java:112)
at com.sun.j3d.utils.applet.MainFrame$1.windowClosing(MainFrame.java:221
)
at java.awt.Window.processWindowEvent(Window.java:800)
at java.awt.Window.processEvent(Window.java:776)
at java.awt.Component.dispatchEventImpl(Component.java:2593)
at java.awt.Container.dispatchEventImpl(Container.java:1213)
at java.awt.Window.dispatchEventImpl(Window.java:914)
at java.awt.Component.dispatchEvent(Component.java:2497)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:131)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:98)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)
Exception occurred during event dispatching:
java.lang.NullPointerException
at HelloUniverse.destroy(HelloUniverse.java:112)
at com.sun.j3d.utils.applet.MainFrame$1.windowClosing(MainFrame.java:221
)
at java.awt.Window.processWindowEvent(Window.java:800)
at java.awt.Window.processEvent(Window.java:776)
at java.awt.Component.dispatchEventImpl(Component.java:2593)
at java.awt.Container.dispatchEventImpl(Container.java:1213)
at java.awt.Window.dispatchEventImpl(Window.java:914)
at java.awt.Component.dispatchEvent(Component.java:2497)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:131)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:98)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)
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