Java - Regex - Replace multiple dots and commas with just one dot

Question

Using TextField to place double/integer numbers, want to change any number with "," to number with "." and remove multiple dots and commas.

String test = "0....,,,,,,,....754568";
test.replaceAll(<?IDK?>, ".");

<?IDK?> means that I don't know what to put there.

Examples:
4,5 → 4.5
6,,,,2 → 6.2
0....,,,,,,,....754568 → 0.754568
7...2 → 7.2

psadac · Accepted Answer · 2019-11-12 20:33:11Z

6

If you want to replace all . or , by . :

test.replaceAll("[.,]+", ".");

answered Nov 12, 2019 at 20:33

psadac

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1 Comment

Thank you, exactly matches what I need.

Wruktarr · Accepted Answer · 2019-11-12 20:31:07Z

0

You can have a regular expression, for example, to identify numbers which have more than one dot or comma you can use the following :

\d+[.,]{2,}+\d

You can adjust it based on your needs.

Wruktarr

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answered Nov 12, 2019 at 20:19

Ouissal

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