C sharp program of selection sorting

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

namespace selsort
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr;
            arr = new int[10];
            Random r = new Random();
            for (int x = 0; x < arr.Length; x++)
            {
                arr[x] = r.Next(100);
            }

            for (int x = 0; x < arr.Length - 1; x++)
            {
                for (int y = x + 1; y < arr.Length; y++)
                {
                    if (arr[x] > arr[y])
                    {

                        int temp;
                        temp = arr[x];
                        arr[x] = arr[y];
                        arr[y] = temp;
                    }
                }
            }
            foreach (int temp in arr)
            {
                Console.WriteLine(temp);
            }
        }
    }
}