Stripping chars from a String with java.regex

Question

I have a String str, I want to strip off all the following special characters {}- using Java.regex and replaceAll().

I would do like that:

str.replaceAll("[\\{\\}\\-]","");

but it doesn't strip what I ask for. Why?

how your input string looks like? Note that strings are immutable in java, you need to assign the result back to another variable. — Avinash Raj
– Avinash Raj, Commented Mar 31, 2015 at 17:25

M A · Accepted Answer · 2015-03-31 17:45:53Z

2

Strings are immutable in Java, meaning str won't be modified by calling replaceAll. You need to re-assign the new value to the string:

str = str.replaceAll("[\\{\\}\\-]","");

Also escaping the curly braces is not needed within character classes:

str = str.replaceAll("[{}-]","");

answered Mar 31, 2015 at 17:26

M A

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1 Comment

more simpler str.replaceAll("[{}-]","");