C# equivalent to Java's charAt()?

Question

You can index into a string in C# like an array, and you get the character at that index.

Example:

In Java, you would say

str.charAt(8);

In C#, you would say

str[8];

string sample = "ratty";
Console.WriteLine(sample[0]);

And

Console.WriteLine(sample.Chars(0));
Reference: http://msdn.microsoft.com/en-us/library/system.string.chars%28v=VS.71%29.aspx

The above is same as using indexers in c#.