C# - Data Type Conversion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DataTypeConversionApp
{
    class Program
    {
        static void Main(string[] args)
        {
            long l = 1000000;
            int i = 100;

            l = i;
            i = Convert.ToInt32(l);
            char c = 'a';
            i = c;
            double d = 150.25;
            Console.WriteLine(i);
            Console.ReadKey();
        }
    }
}