If the first name, last name and the nick name starts with the special chars

Question

If the first name, last name and the nick name starts with the special chars like !@#$%^&*()_+?></ then show the error message like this "Enter valid first name/ last name/nick name"

First and foremost stackoverflow isn't the place where someone will solve the entire problem for you. You need to show us the code and pinpoint the place when you encountere a problem. — mic4ael, Feb 02 '17 at 08:39
Wecome to StackOverflow. How to ask a good question -> http://stackoverflow.com/help/how-to-ask — adalpari, Feb 02 '17 at 08:40
Possible duplicate of [Java regular expression match](http://stackoverflow.com/questions/4463867/java-regular-expression-match) — Nayan Srivastava, Feb 02 '17 at 08:42
`if (name.matches("(?:!|@|#|\\$|%|\\^|&|\\*|\$|\$|_|\\+|\\?|>|<).*")) { System.out.println("Enter valid name"); }` — Tim Biegeleisen, Feb 02 '17 at 08:42
why people downvoting this. I think he asked a nice question and if it is not a duplicate then whats the issue? — Ankush Bist, Feb 02 '17 at 08:50
@Ankush Bist Question might be nice! But there is a way to ask! He has not shown any attempts that he made or any related thing and of course there are many smiler questions here at SO — Charuක, Feb 02 '17 at 09:08

Tim Biegeleisen · Accepted Answer · 2017-02-02T08:51:37.420

1

You can use String#matches() to check if a name begins with any of the special characters on your blacklist:

if (name.matches("(?:!|@|#|\\$|%|\\^|&|\\*|\\(|\\)|_|\\+|\\?|>|‌<).*")) {
    System.out.println("Enter valid name");
}

Another way:

String specialChars = "!@#$%^&*()_+?><";
if (specialChars.indexOf(name.charAt(0)) != -1) {
    System.out.println("Enter valid name");
}

edited Feb 02 '17 at 08:51

answered Feb 02 '17 at 08:46

Tim Biegeleisen

502,043
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score 0 · Answer 2 · answered Feb 02 '17 at 08:45

0

try below code

String regex = "!@#$%^&*()_+?></ *";

if (regex.contains(firstname.charAt(0))){
   //--- set error
}

answered Feb 02 '17 at 08:45

sajan

389
5
11

Thank you it work for me – Hemanth uprety Feb 02 '17 at 08:53

If the first name, last name and the nick name starts with the special chars

2 Answers2