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Published on 13 Apr 2015 | over 3 years ago

Some of you have asked me this question about why is my app stopping suddenly when I don't type anything and click on the button.

When I made that tutorial, I was trying to make a basic tutorial which can be understandable to everyone who doesn't know java.

So I didn't add minor parts like handling invalid inputs. But it is essential to add those parts and handle such conditions.

Watch previous 2 parts here :
part 1 - layout - youtu.be/mrjOLG2Grt0
part 2 - java coding - youtu.be/6SS403iQTTU
part 3 - Testing - youtu.be/86108PN4hW8

I hope this solves your doubt.

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