Dump - Practice Exercises C# Sharp

using System;
using System.IO;
public class Dump
{
    public static void Main()
    {
        FileStream file;
        const int SIZE_BUFFER = 16;

        string name = Console.ReadLine();

        try
        {
            file = File.OpenRead(name);
            byte[] data = new byte[SIZE_BUFFER];

            int amount;
            int c = 0;

            string line;
            do
            {
                Console.Write(ToHex(file.Position, 8));
                Console.Write("  ");


                amount = file.Read(data, 0, SIZE_BUFFER);

                for (int i = 0; i < amount; i++)
                {
                    Console.Write(ToHex(data[i], 2) + " ");

                    if (data[i] < 32)
                        line += ".";
                    else
                        line += Convert.ToChar(data[i]);
                }


                if (amount < SIZE_BUFFER)
                {
                    for (int i = amount; i < SIZE_BUFFER; i++)
                    {
                        Console.Write("   ");
                    }
                }

                Console.WriteLine(line);
                line = "";

                c++;
                if (c == 24)
                {
                    Console.ReadLine();
                    c = 0;
                }
            }
            while (amount == SIZE_BUFFER);

            file.Close();
        }
        catch (Exception)
        {
            Console.WriteLine("Error");
        }
    }

    public static string ToHex(int n, int digits)
    {
        string hex = Convert.ToString(n, 16);
        while (hex.Length < digits)
            hex = "0" + hex;
        return hex;
    }
}