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How to validate placeholder and navigate to next page?

In my code, I have to enter the details.! If we add email address then only the page must navigate else error message has to show. May I know how to do that in simple java

voidpubliconclick
2nd Jun 2017, 12:14 PM
Sravan Kumar Malyala
Sravan Kumar Malyala - avatar
2 Answers
0
OK, thank you! I'll check with that then
2nd Jun 2017, 12:25 PM
Sravan Kumar Malyala
Sravan Kumar Malyala - avatar
- 3
It's Java Script
2nd Jun 2017, 12:23 PM
Sravan Kumar Malyala
Sravan Kumar Malyala - avatar

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