Write a C# Sharp program to re-arrange the elements in a given array of numbers and check the numbers are consecutive or not

using System;
using System.Linq;
namespace exercises
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] nums = { -10, -11, -12, -13, -14, 15, 16, 17, 18, 19, 20 };
            Console.WriteLine("Original array elements:");
            for (int i = 0; i < nums.Length; i++)
            {
                Console.Write(nums[i] + " ");
            }
            Console.WriteLine("\nCheck the numbers of the said array are consecutive or not! " + test(nums));
            int[] nums1 = { -1, -2, -3, 0, 1, 4, 3, 2 };
            Console.WriteLine("\nOriginal array elements:");
            for (int i = 0; i < nums1.Length; i++)
            {
                Console.Write(nums1[i] + " ");
            }
            Console.WriteLine("\nCheck the numbers of the said array are consecutive or not! " + test(nums1));
        }
        public static bool test(int[] nums)
        {
            Array.Sort(nums);
            for (int i = 1; i < nums.Length; i++)
                if (nums[i] - nums[i - 1] != 1)
                    return false;
            return true;
        }
    }
}