Regex is not accepted but seems to be vaild

Asked May 26 '20 at 20:11

Active May 26 '20 at 20:11

Viewed 25 times

I currently and trying to have a regex validate if a string has a 0 followed by either a 7 or 8. On regex101 it shows as valid but then java fails the match. The regex I used is: ^(0[7-8])

What seems to be valid: https://regex101.com/r/cQMh2k/2

But the java code shows to be false:

System.out.println("08863".matches("^(0[7-8])"));
// prints false

I have also tried these variations to no avail:

^(0{1}[7-8])
^(0*[7-8])
^([0][7-8])

asked May 26 '20 at 20:11

Bhagyesh

5

`matches()` requires a full string match, use `Matcher#find` – Wiktor Stribiżew May 26 '20 at 20:12
You don't need the `-`, that is only to create a range. `[78]` is the same. – user3783243 May 26 '20 at 20:13
That `^` is redundant when using `matches()`. – Andreas May 26 '20 at 21:03
Can't you use String.startsWith instead of regex? – t4u May 26 '20 at 21:05

Regex is not accepted but seems to be vaild

0 Answers0