CSharp - String characters Indexer Accessing

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Introduction

A string's indexer returns a single character at the given index.

The indexing is is zero-indexed:

Demo

using System;
class MainClass{//from w w  w  .  j  a v  a2s . c  o  m
   public static void Main(string[] args){
         string str  = "abcde";
         char letter = str[1];        // letter == 'b'
   }
}

string implements IEnumerable<char>, so you can foreach over its characters:

Demo

using System;
class MainClass{/*from   www  . ja v a2  s  . c om*/
   public static void Main(string[] args){
     foreach (char c in "123")
        Console.Write (c + ",");    // 1,2,3,
   }
}

Result

Exercise