Are there any advantages of using TextUtil class over String class in Android?

Question

I was reading the Android documentation and saw some familiar methods in TextUtils which i normally use in String class, and I also discovered that the method String.split(String regex) was removed, but is present in TexUtils class. So i started to wonder why thy even bothered adding duplicate methods in TextUtils which were originally present in String class

Answer 1

I often use TextUtils.isEmpty(string) to check whether string is empty or not (string!=null && string.length>0)