Question

I have one string like 010000200000, 000000200000, 020000200000. I want to create regex for this and want to check that first 2 digit will be only 01,00 & 02. And rest of the digit should be only from [0-6].

I don’t want any space or any special character in this string. I try some of the regex available online but didn’t help me exactly.

If anyone has any idea please kindly help.

Answer 1

This should parse them with your requirements.

java.util.regex.Pattern.matches("0[012][0-6]+", "010000200000");

The first character is always a 0, followed by 1 character that is a 0, 1 or 2, followed by at least 1 character in the 0-6 range.