Dost dobra juha

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Xml;
namespace dost
{
    class Program
    {
        public struct Student
        {
            int jmbag;
            string ime;
            string prezime;
            int bodovi;


            public Student(int nJmbag, string sIme, string sPrezime, int nBodovi)

            {
                jmbag = nJmbag;
                ime = sIme;
                prezime = sPrezime;
                bodovi = nBodovi;

            }
            static void Main(string[] args)
            {
                string sUsername = "admin";
                string sPass = "admin1234";
                string sUsernameInput;
                string sPassInput;
                int nOdabir;
                Console.WriteLine("Unesite korisnicko ime: ");
                sUsernameInput = Console.ReadLine();
                Console.WriteLine("Unesite password: ");
                sPassInput = Console.ReadLine();

                if (sUsername == sUsernameInput && sPass == sPassInput)
                {
                    Console.WriteLine("Dobrodosli u izbornik");
                    DohvatiIzbornik();
                    nOdabir = Convert.ToInt32(Console.ReadLine());

                    List<Student> lStudenti = DohvatiListu();
                    switch (nOdabir)
                    {
                        case 1:
                            PrikaziBodovnuListu(lStudenti);
                            break;
                        case 2:
                            PrikaziProsliListu(lStudenti);
                            break;
                        case 3:
                            PrikaziPaliListu(lStudenti);
                            break;
                        case 4:
                            PrikaziStudentListu(lStudenti);
                            break;
                        case 5:
                            KreirajIzvjesce(lStudenti);
                            break;
                        default:
                            Console.WriteLine("Ne postoji opcija");
                            break;
                    }
                }
                else
                {
                    Console.WriteLine("Krivi podaci buraz");
                }
                Console.ReadKey();
            }

            public static void DohvatiIzbornik()
            {
                Console.WriteLine("Odaberite jednu od opcija");
                Console.WriteLine("1. Prikazi listu studenata");
                Console.WriteLine("2. Prikazi studente koji su prosli ispit");
                Console.WriteLine("3. Prikazi studente koji nisu prosli ispit");
                Console.WriteLine("4. Prikazi studente prema imenu");
                Console.WriteLine("5. Kreiraj izvjesce");
            }

            public static List<Student> DohvatiListu()
            {
                List<Student> lStudenti = new List<Student>();
                string sXml = "";
                StreamReader oSr = new StreamReader("Dubrad.xml");
                using (oSr)
                {
                    sXml = oSr.ReadToEnd();
                }
                XmlDocument oXml = new XmlDocument();
                oXml.LoadXml(sXml);
                XmlNodeList oNodes = oXml.SelectNodes("//studenti/student");
                foreach (XmlNode oNode in oNodes)
                {
                    int nJmbag = Convert.ToInt32(oNode["jmbag"].InnerText);
                    string sIme = oNode["ime"].InnerText;
                    string sPrezime = oNode["prezime"].InnerText;
                    int nBodovi = Convert.ToInt32(oNode["bodovi"].InnerText);
                    Student oStudent = new Student(nJmbag, sIme, sPrezime, nBodovi); lStudenti.Add(oStudent);
                }
                return lStudenti;
            }

            public static void PrikaziBodovnuListu(List<Student> lStudenti)
            {
                for (int i = 0; i < lStudenti.Count(); i++)
                {
                    Console.WriteLine("JMBAG: " + lStudenti[i].jmbag);
                    Console.WriteLine("Ime:" + lStudenti[i].ime);
                    Console.WriteLine("Prezime:" + lStudenti[i].prezime);
                    Console.WriteLine("Bodovi:" + lStudenti[i].bodovi);
                    Console.WriteLine("");
                }
            }

            public static void PrikaziProsliListu(List<Student> lStudenti)
            {
                for (int i = 0; i < lStudenti.Count(); i++)
                {
                    if (lStudenti[i].bodovi >= 25)
                    {
                        Console.WriteLine("Jmbag:" + lStudenti[i].jmbag);
                        Console.WriteLine("Ime:" + lStudenti[i].ime);
                        Console.WriteLine("Prezime:" + lStudenti[i].prezime);
                        Console.WriteLine("Bodovi:" + lStudenti[i].bodovi);
                        Console.WriteLine("");

                    }
                }

            }

            public static void PrikaziPaliListu(List<Student> lStudenti)
            {
                for (int i = 0; i < lStudenti.Count(); i++)
                {
                    if (lStudenti[i].bodovi <= 49)
                    {
                        Console.WriteLine("Jmbag:" + lStudenti[i].jmbag);
                        Console.WriteLine("Ime:" + lStudenti[i].ime);
                        Console.WriteLine("Prezime:" + lStudenti[i].prezime);
                        Console.WriteLine("Bodovi:" + lStudenti[i].bodovi);
                        Console.WriteLine("");
                    }
                }
            }

            public static void PrikaziStudentListu(List<Student> lStudenti)
            {
                Console.WriteLine("Unesite ime koje želite pretražiti");
                string sNameofStudentInput = Console.ReadLine();
                for (int i = 0; i < lStudenti.Count(); i++)
                {
                    if (sNameofStudentInput == lStudenti[i].ime)
                    {
                        Console.WriteLine("Jmbag:" + lStudenti[i].jmbag);
                        Console.WriteLine("Ime:" + lStudenti[i].ime);
                        Console.WriteLine("Prezime:" + lStudenti[i].prezime);
                        Console.WriteLine("Bodovi:" + lStudenti[i].bodovi);
                        Console.WriteLine("");
                    }
                    else
                    {
                        Console.Write("Nema tog majstora");
                        Console.ReadKey();
                    }
                }
            }


            public static void KreirajIzvjesce(List<Student> lStudenti)
            {
                int prosli = 0;
                int pali = 0;
                for (int i = 0; i < lStudenti.Count(); i++)
                {
                    if (lStudenti[i].bodovi >= 50)
                    {
                        prosli = prosli + 1;
                    }
                    if (lStudenti[i].bodovi < 50)
                    {
                        pali = pali + 1;
                    }
                }
                Console.WriteLine("{0}{1}", "Broj studenata koji su polozili ispit:", prosli);
                Console.WriteLine("{0}{1}", "Broj studenata koji su pali ispit:", pali);
            }

        }
    }
}