JAVA Regex Explain

Question

[01]?\d{1,2} can someone please explain the complete meaning of the above line.

You can try out any online regex explaining site like [regexr](https://regexr.com/) — Smile, Nov 13 '20 at 06:26

score 0 · Answer 1 · answered Nov 13 '20 at 06:27

0

This pattern describes a text that might (but not must) start with a 0 or 1 ([01]?) followed by one to two digits (\d{1,2}).

answered Nov 13 '20 at 06:27

Milgo

2,399
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20
35

score 0 · Answer 2 · answered Nov 13 '20 at 06:43

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In short, this pattern used to test a number between 000 and 199. [01]? means a number starts with 0 or 1, and \d{1,2} means a one-digit or two-digit number.

answered Nov 13 '20 at 06:43

Oliver.bi

21
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JAVA Regex Explain

2 Answers2