if i close the dialog box, a NullPointerException occurs. how do i get rid of it?
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What is a NullPointerException, and how do I fix it?
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java.lang.IllegalStateException: Scanner closed
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ArgumentException or ArgumentNullException for string parameters?
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How to close a Java Swing application from the code
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"No enclosing instance of type" error while calling method from another class in Android
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NullReferenceException in Unity
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How to close a ViewPart in Eclipse?
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What is the proper way to show a WinRT MessageDialog due to a caught exception?
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Is it safe to delete a NULL pointer?
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Why do buttons with ChoiceDialog freeze the front end?
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Closing jFrame after clicking JButton
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What is a null-terminated string?
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java.lang.NullPointerException at javax.faces.webapp.UIComponentClassicTagBase.setJspId
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setOnClickListener crashs my android app
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How to programmatically close a JFrame
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How to capture a JFrame's close button click event?