Dictionary in Csharp

A Dictionary in Csharp is a generic class that allows the user to create a Key-Value pair defined as a single instance.

using System;
using System.Collections.Generic;
 
class Test
{
    public static void Main()
    {
        // Creating a dictionary
        // Initialization doesn't require the "new" part.
        Dictionary<int, string> sub = new Dictionary<int, string>();
 
        // Adding elements
        sub.Add(1, "C#");
        sub.Add(2, "Javascript");
        sub.Add(3, "Dart");
 
        // Displaying dictionary
        foreach (var ele in sub){
            Console.WriteLine($"Key: {ele.Key}, Value: {ele.Value}");
        }
    }
}

Example with a custome state machine:

using System;
using System.Collections.Generic;
 
class Test
{
    public static void Main()
    {
        // Creating a dictionary
        Dictionary<System.Type, Characters> sub;
 
        sub = new Dictionary<System.Type, Characters>
        {
            { typeof(Mario), new Mario() }
        };
        
        Console.WriteLine(sub);
        
        // Displaying dictionary
        foreach (var ele in sub){
            Console.WriteLine($"Key: {ele.Key}, Value: {ele.Value}");
        }
    }
}
 
public interface Characters
{
    void Start();
}
 
public class Mario : Characters
{
    public void Start()
    {
        
    }
}