Regex for specific number

Question

I need regular expression for ID number, it's 9 numbers and the first number must be 4 or 9 or 8.

can some one help ?

What have you tried and what is not working? (If this is homework please tag it as such.) — David Harris
– David Harris, Commented Apr 12, 2011 at 19:11

codaddict · Accepted Answer · 2011-04-12 19:08:22Z

16

You can use the following regex:

^[489][0-9]{8}$

answered Apr 12, 2011 at 19:08

codaddict

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Mark Peters Over a year ago

Regarding your comment on @Jellicle's answer, the anchors are not mandatory in some engines depending on how you inkove it. In Java, for example, if you were using the standard String.matches() or Matcher.matches() you don't need them, but if you were doing Matcher.find() you would. That answer was deleted so I'm leaving it here as it's also relevant to this answer.

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