What do the Replace all do?

Java String replaceAll() The replaceAll() method replaces each substring that matches the regex of the string with the specified text .

replaceAll() The replaceAll() method returns a new string with all matches of a pattern replaced by a replacement . The pattern can be a string or a RegExp , and the replacement can be a string or a function to be called for each match. The original string is left unchanged.

The replace() method searches a string for a value or a regular expression . The replace() method returns a new string with the value(s) replaced. The replace() method does not change the original string.