String
 
  Reference for Wiring 1.0 (ALPHA) 0017+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
Class   String
   
Name  

charAt()

   
Examples   
String str = "CCCP"; 
char c1 = str.charAt(0); 
char c2 = str.charAt(1); 
char c3 = str.charAt(str.length()-1); 
 
Serial.println(c1);  // Prints 'C' 
Serial.println(c2);  // Prints 'C' 
Serial.println(c3);  // Prints 'P'

Description   Returns the character at the specified index. An index ranges from 0 to the length of the string minus 1. The first character of the sequence is at index 0, the next at index 1, etc.
   
Syntax   
charAt(index)
   
Parameters  
index   int: the index of the character
   
Returns   char
   
Usage   Web & Application