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Asked: 2026-05-15T21:09:31+00:00

HI , I am writing a java program to validate email addresses. This program

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HI ,

I am writing a java program to validate email addresses. This program use Pattern class to validate the input string against the Regex pattern. I have procured Regex Pattern for the email validatation and my program is successfully working.

Now, I see some wrong email addresses in my database(Email delevery fails to these addresses.), So, i decided to prepare a test case that will run a validation on the handfull of email addresses list. I want this list to have all possible cases for a valid email address and invalid email address.

I am wondering if some has prepared email validatation test case before? If so Please Guide me to have this test case prepared with me?

Regards,
VSD

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1 Answer

  1. Editorial Team

    This article contains some regexps which cover valid addresses.

    There are no test cases, though. In your case, I suggest to try the usual approach: Take a couple (2-3) valid and invalid addresses and test that. If you find your code to accept an illegal address or reject a valid one, then extend the test.

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