Simple Java ReplaceAll for string literals (i.e. no regex)
Regex is great. Really great. But sometimes you just don’t want it. Java provides a Stirng.replaceAll method but it uses regex and both parameters MUST be escaped if you just want a string literal replace.
Use Pattern.quote for the first param of Stirng.replaceAll, and Matcher.quoteReplacement for the second.
Here’s an example on how to escape the regex parameters:
String myString = “foo[]bar”;myString = myString.replaceAll(Pattern.quote(“foo[]“), Matcher.quoteReplacement(“bar$”));System.out.println(myString);// output bar$bar
If you don’t believe me, try the above sample with
myString = myString.replaceAll(“foo[]“, “bar$”);
(you will get exceptions for both arguments if you try).
Hope that helped…
Just use the string’s replace method:
myString = myString.replace(“foo[]“, “bar$”);
Simple. One line. No escaping or importing needed.