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Showing posts from June 20, 2014

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException

This error occurs when you run your java file This error due to improper sequence of java components  Example : If using frame , toolbar , button on toolbar
You must declare frame  Then, toolbar add the toolbar to the frame
Then , button  Then add the button to the toolbar

CBNST-2008-Question Paper

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