ASCII char check using regex(java)

Question

I have a string like message = "ASDF rfghy !@#$ :>< "

I want to check this string contain ASCII value between 0 to 255 using regex(java).

Possible duplicate of [Java Regexp to Match ASCII Characters](http://stackoverflow.com/questions/5071236/java-regexp-to-match-ascii-characters) — Alfabravo, Nov 20 '15 at 21:51

score 5 · Answer 1 · answered Dec 13 '11 at 06:27

5

You can try the regex:

"^\\p{ASCII}*$"

answered Dec 13 '11 at 06:27

codaddict

score 3 · Answer 2 · answered Dec 13 '11 at 06:27

3

In regex, \x00 matches the hex character 00 and character classes work on these. So you can do:

/^[\x00-\x7F]+$/

to match a string of one or more ascii values.

answered Dec 13 '11 at 06:27

Dan

score 2 · Accepted Answer · answered Dec 13 '11 at 06:38

2

Just use this code to do this check:

System.out.println("Matches: " + message.matches("[\u0000-\u00FF]+"));

answered Dec 13 '11 at 06:38

anubhava

3 Answers3