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NullPointerException

Vishnu Prakash
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Joined: Nov 15, 2004
Posts: 1026
Why am I getting a NullPointerException in this example



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marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

Originally posted by vishnu prakash:
Why am I getting a NullPointerException in this example...

Because you set av to null, then tried to call an instance method without an instance...

If you need to call video() without having a specific instance of AudioVideo, then video() should be static.


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Vishnu Prakash
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Joined: Nov 15, 2004
Posts: 1026
Thanks for the explanation.

 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: NullPointerException