Find the first occurrence with Regex and Java

Question

I would like to be able to find the first occurrence of m² and then numbers in front of it, could be integers or decimal numbers. E.g.

"som

Answer 1

One simple way of doing it!

description.replaceFirst(@NotNull String regex,
                           @NotNull String replacement)

JAVADoc: Replaces the first substring of this string that matches the given regular expression with the given replacement.