Pattern Regex Java two patterns at the same time?

Question

i'm trying to sort some text using regex pattern, and i already have something like this:

Pattern pattern = Pattern.compile("\\w{4,30}\\b");

If i'm right it should give me strings of 4 to 30 characters long, but i don't want any number in my Strings too, don't know how to make two filters at the same time, any suggestions?

Answer 1

You may use

"\\b(?!\\d+\\b)\\w{4,30}\\b"

See the regex demo . The main things here are word boundaries ( \\b ) and the negative lookahead construct that restricts the chars the word to be matched should consist of.

Details

• \\b - a word boundary
• (?!\\d+\\b) - no 1 or more digits immediately to the right of the current location is allowed up to the end of the word
• \\w{4,30} - 3 to 30 word (letter, digit or _ ) chars
• \\b - a word boundary.