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Android Build a Self-Destructing Message Android App Adding Users Using Parse.com Error Messages with Dialogs

Posted by Elias Caceres
Elias Caceres
8,454 Points

If a string is null, doesn't isEmpty() throw a Nullpointerexception when used?

Shouldnt we check for isEmpty OR ==null? At least thats how I remember it... But i might be worng.

1 Answer

Harry James
Harry James
14,780 Points
Harry James
Harry James
14,780 Points

Hey Linxy!

I can totally see where you're coming from here! We still don't actually have a need for checking null because when we run getText(), if there is no text, we are just given an empty String "". We'll never actually be returned null from this method.

Hope this explains things but if there's still something you don't quite understand, give me a shout :)