trying to make a highscore table -__-"

Question

hello ppl...
am trying 2 make a score table for some game..not doing so gd..
as am coding without knowing whats going on..
explain 2 me like a 5 year old ..cuz this is really hard.. O_o

anyway here's the code..

_______

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

namespace ManicMailman
{
    public class Hiscore
    {
        static void Main(string[] args)
        {

            int[] highscores = new int[4];

            for (int i = 1; i < 4; i++)
            {
                highscores[i] = i;
                Console.WriteLine(i + "." + highscores[i]);
            }


        }

       private int addScore()
       {
           int arr, score;

             Array.Sort(arr);
        if(score > arr[3])
            arr[3] = score;
        else if (score > arr[2] && score < arr[3])
            arr[1] = score;
        else if (score > arr[1] && score < arr[2])
            arr[1] = score;
        for(int i = arr.length-1; i>=0; i--)
        {
        }
           
                
        }
          
     

       
    }
}