Using String.replaceAll() to remove character combination

Question

I need to remove all redundant hyphens in a given string, e.g.: "Bla----Bla---Bla--Bla" to "Bla-Bla-Bla-Bla", using as little code as possible.

At the moment I've implemented this:

url = url.replace('----', '-');
url = url.replace('---', '-');
url = url.replace('--', '-');

to achieve this.

Is there a way to use the String.replaceAll method to achieve this?

Thank You!

Answer 1

You could use replaceAll with a regular expression as follows:

url = url.replaceAll('-+','-');

This says "match one or more (+) hyphens (-)" and we replace it with the singular hyphen (-).