Fill array with random values

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

namespace ArrayofValues
{
    class Program
    {
        static void Main(string[] args)
        {
            #region BytesExample
            byte[] bytes1 = new byte[100];
            Random rnd1 = new Random();

            rnd1.NextBytes(bytes1);

            Console.WriteLine("First Series:\n");
            for (int ctr = bytes1.GetLowerBound(0);
                 ctr <= bytes1.GetUpperBound(0);
                 ctr++)
            {
                Console.Write("{0,5}", bytes1[ctr]);
                if ((ctr + 1) % 10 == 0)
                {
                    Console.WriteLine();
                }
            }
            #endregion

            LineDivider();

            #region Integer Example
            int[] numbers = new int[100];
            Random random = new Random();

            int min = 1;
            int max = 1000;

            Console.WriteLine("Example using integers:\n");
            for (int i = 0; i < numbers.Length; i++)
            {
                numbers[i] = random.Next(min, max - 1);
                Console.Write($"{numbers[i],5}");
                if ((i + 1) % 10 == 0)
                {
                    Console.WriteLine();
                }
            }
            #endregion

            LineDivider();

            #region Example Using Chars

            //Instantiate new array to store data, and new Random class to generate random values
            char[] letters = new char[100];
            Random rand = new Random();

            //Define min and max values
            char minChar = 'A';
            char maxChar = 'Z';

            //Write Output to Console
            Console.WriteLine("Example using characters:\n");
            for (int i = 0; i < letters.Length; i++)
            {
                letters[i] = (char)rand.Next(minChar, maxChar - 1);
                Console.Write($"{letters[i],5}");

                ///<Summary>
                /// Each time though it checks to see if i is a factor of 10. If no it continues through loop writing to the current                line.
                /// If yes, it writes a new line to write on.
                /// </Summary>
                if ((i + 1) % 10 == 0)
                {
                    Console.WriteLine();
                }
            }

            Console.ReadLine();
            #endregion
        }
        public static void LineDivider()
            {
            Console.WriteLine("\n--------------------------------------------------\n");
            }
    }


}