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What's wrong in my program ?

Getting these errors on execution. Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException https://code.sololearn.com/cRZd8fG7JIT9/?ref=app

5/27/2019 5:55:43 PM

Anil Kaundal

2 Answers

New Answer

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Can you link the code?

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Probably you are trying to access a object that's not initialized, or you are using the result of a function that returned null