Question

i know java API function charAt for example

String  s="dato"
  char r=s.charAt(0); r is equal d

but my question is how realy it works or what function can i use instead of charAt function to get same result? thanks

Answer 1

To what purpose? I mean, if charAt(0) does what you want, why look for something else?

But, to answer your question: no, there is no (reasonably straight forward) way to get the n^th character from a String in Java. You could use String‘s substring(...) method, but that returns a String, not a char.

Or first convert your String into an array of char‘s with String‘stoCharArray() and get a character from the array, but that’s just silly when you have charAt(...) at your disposal.