Reduce multiple consecutive equal characters from a string to just one

Question

Basically, I want to take a string, and if there are multiple '+'s in a row, i want to remove all but one. So:

"This++is+an++++ex+ampl++e"

would become

"This+is+an+ex+ampl+e"

I'm not sure whether LINQ or Regex or something else would be best suited, but it doesn't have to use any particular method.

Answer 1

Regex.Replace(str, @"\++", "+");

Answer 2

while (str.Contains("++"))
    str = str.Replace("++", "+");