What replace method can I use to replace a substring from a String?

Question

How can I replace it? I've been trying this:

string.replaceFirst(substring, "");

but it's not replacing, and as I am doing a recursive method, it's giving me a StackOverflowException..

Any idea?

Answer 1

String are immutable, which means you cannot change them once they are initialized.

The replaceFirst method creates a new string where the first instance is replaced by your replacement and returns it...the original string is never modified.

You're code should be something like this

string = string.replaceFirst(substring,"")

Answer 2

In addition to other replys that Strings are immutable, note that replaceFirst takes in a Regular Expression not a substring. (The two might be the same in some cases but not all). Either way this more than likely is unrelated to your StackOverflowException.

Answer 3

This method not modifying current String. It returns new string with replacement. String newString = string.replaceFirst(substring, "");

Answer 4

Use this:

string = string.replaceAll(substring, replacement_string).