char charAt(int i):
This method returns a character at specified location i.
Signature
The signature of string charAt() method is given below:
public char charAt(int index)
String charAt program
class Test 
{ 
public static void main(String[] args) 
{ 
String str="freetmielearn"; 
System.out.println(str.charAt(1)); 
char ch="freetmielearn".charAt(2); 
System.out.println(ch); 
}
}
Output :
r,e