Java Program to use charAt function in string

// Program to explain the following String function :
// char charAt( int where )
class  McharAt
{
public static void main( String args[ ] )
{
 char ch;
 String s1 = "Nils"; 
 
 ch = s1.charAt( 0 );
 System.out.println( " Character at 0 : " + ch );
 ch = "Java".charAt( 3 );
 System.out.println( " Character at 3 : " + ch );
}
}

Output:
 Character at 0 : N
 Character at 3 : a