C# | SortedDictionary.Item[] Property

// C# code to get or set the value
// associated with the specified key
using System;
using System.Collections;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a SortedDictionary named myDict
        SortedDictionary<string, string> myDict = 
          new SortedDictionary<string, string>();

        // Adding key/value pairs in myDict
        myDict.Add("Australia", "Canberra");
        myDict.Add("Belgium", "Brussels");
        myDict.Add("Netherlands", "Amsterdam");
        myDict.Add("China", "Beijing");
        myDict.Add("Russia", "Moscow");
        myDict.Add("India", "New Delhi");

        // Displaying the key/value pairs in myDict
        foreach(KeyValuePair<string, string> k in myDict)
        {
            Console.WriteLine("Key = {0}, Value = {1}",
                              k.Key, k.Value);
        }

        // Displaying the value associated
        // with key "Russia"
        Console.Write("\nValue associated with Russia: ");
        Console.Write(myDict["Russia"]);

        // Setting the value associated with key "Russia"
        myDict["Russia"] = "Saint Petersburg";

        // Displaying the value associated
        // with key "Russia"
        Console.Write("\n\nValue associated with"+
                       " Russia After Setting: ");

        Console.Write(myDict["Russia"]);

        // Displaying the value associated
        // with key "India"
        Console.Write("\n\nValue associated with India: ");
        Console.Write(myDict["India"]);

        // Setting the value associated with key "India"
        myDict["India"] = "Mumbai";

        // Displaying the value associated
        // with key "India"
        Console.Write("\n\nValue associated "+
                "with India After Setting: ");

        Console.Write(myDict["India"]);
        Console.WriteLine("\n");

        // Displaying the key/value pairs in myDict
        foreach(KeyValuePair<string, string> k1 in myDict)
        {
            Console.WriteLine("Key = {0}, Value = {1}",
                              k1.Key, k1.Value);
        }
    }
}