Java Regex: Allow only one blank space between two words

Asked Oct 14 '20 at 19:17

Active Oct 14 '20 at 19:30

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Hello I'm trying to write a regular expression to implement a simple First Name + Space + Last Name in Java. Two words with only one space between them. The total length (including the white space) of the text should be between 8 and 60 characters. I tried the following but it does not work.

"[a-zA-z][ ][a-zA-Z]{8,60}"

edited Oct 14 '20 at 19:30

asked Oct 14 '20 at 19:17

Ronald Valdivia

why don't you look for white space that is at least two long [ ]{2,60} – Daniel Oct 14 '20 at 19:19
2

`^(?=.{8,60}$)[a-zA-Z][ ][a-zA-Z]+$`, I believe `A-z` is a typo. – Wiktor Stribiżew Oct 14 '20 at 19:20
2

Or avoid regex at all `!str.contains(" ") && str.length() <= 60` – VLAZ Oct 14 '20 at 19:20
Ok, you may use `^(?=.{8,60}$)[a-zA-Z]+ [a-zA-Z]+$` – Wiktor Stribiżew Oct 14 '20 at 19:56

Java Regex: Allow only one blank space between two words

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