Online C# Compiler

using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ StringDictionary strDict1 = new StringDictionary(); strDict1.Add("S", "Home Appliances"); strDict1.Add("T", "Smart Wearable Tech"); strDict1.Add("U", "Electronics"); strDict1.Add("V", "Toys"); strDict1.Add("W", "Books"); strDict1.Add("X", "Accessories"); Console.WriteLine("StringDictionary elements..."); foreach(DictionaryEntry d in strDict1){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("\nCollection of keys and values..."); String[] keyArr = new String[strDict1.Count]; strDict1.Keys.CopyTo(keyArr, 0); for (int i = 0; i < strDict1.Count; i++) { Console.WriteLine("Key "+(i+1)+" = "+keyArr[i]+", Value "+(i+1)+" = "+strDict1[keyArr[i]]); } Console.WriteLine("\nDoes StringDictionary has key B? "+strDict1.ContainsKey("B")); } }