I need to remove ^A from an incoming string, I'm looking for a regex pattern for it
Don’t want to use \\p{cntrl} , I don’t want to delete the other control characters coming in the string
- You can escape special characters for an exact match of that character. You can use sites such as this one to test your regexes easily.Some programmer dude– Some programmer dude2019-09-16 08:28:32 +00:00Commented Sep 16, 2019 at 8:28
- @Someprogrammerdude I have tried all possible combinations it’s not workingmegha raina– megha raina2019-09-16 08:36:37 +00:00Commented Sep 16, 2019 at 8:36
- Any reason why you need to use regex to remove a fixed substring? Basic string manipulation would be more efficient and require no regex knowledge.Aaron– Aaron2019-09-16 09:13:36 +00:00Commented Sep 16, 2019 at 9:13
- It’s a parameterized that’s to be removedmegha raina– megha raina2019-09-16 09:14:40 +00:00Commented Sep 16, 2019 at 9:14
- As long as the parameter itself isn't a regex it doesn't matter. I'll post a regex-less answer for illustrationAaron– Aaron2019-09-16 09:23:13 +00:00Commented Sep 16, 2019 at 9:23
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2 Answers
You should use escaping for '^A':
public static void main(String[] args) { String value = "remove special char ^A A and B"; System.out.println(value.replaceAll("\\^A", "")); } Output:
remove special char A and B
7 Comments
megha raina
Try using this string “remove special char ^A A and B”
megha raina
If I use \\^A it removes my stand alone “A” as well output is like “remove special char and B”
BeUndead
@megharaina: You're using forward slashes there.
megha raina
Wrote it mistakenly , using the correct escape only
megha raina
Can u pls try it with the string that gave ?
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I suggest you avoid using regex and instead use basic string manipulation :
String toRemove = "^A"; yourString.replace(toRemove, ""); You can try it here.
Be careful not to use String methods that work on regexs, especially since the name of the methods aren't very informative (replace replaces all occurences of a fixed string, replaceAll replaces all occurences that match a regex pattern).
