I wanted to know how to achieve the following scenarios with java regex:
- find all consequent numbers in a string which are not separated by alphabetic characters, count them, and if the number of digits is between 4 and 5(5 included), then replace them with
"*"
Examples:
"0000"will become"****""any text 000 00 more texts"will become"any text ***** more texts"..notice that the space is removed"any text 000 00 more texts 00"will become"any text ***** more texts 00""any text 000 00 more texts 00 00"will become"any text ***** more texts ****""any text 00-00 more texts 00_00"will become"any text **** more texts ****"
To find the numbers I have tried:
(\d*)(?=[^a-bA-Z]*)and(\d*)([^a-bA-Z])(\d*)(\d*)([^a-bA-Z])(\d*)
But even matching the cases does not work.
I need more understanding of how to do regex operations.