C# Lab 7 Problema 1 (Struct to Class! Important)

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

namespace SuportLaborator7
{
    public enum AccountType { Cec, Deposit }
    public class BankAccount
    {
        private AccountType accType;
        private long accNumber;
        private decimal amount;
        public void PopulareCampuri(long nr, decimal sold, AccountType tip)
        {
            accType = tip;
            accNumber = nr;
            amount = sold;
        }
        public long NumarCont()
        {
            return accNumber;
        }
        public decimal Sold()
        {
            return amount;
        }
        public AccountType ReturnTipCont()
        {
            return accType;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            BankAccount account = new BankAccount();

            /*account.accType = AccountType.Cec;
            account.amount = 0.8M;

            Console.WriteLine("Introduceti numarul de cont: ");
            account.accNumber = long.Parse(Console.ReadLine());
            */

            BankAccount obj = new BankAccount();
            long x = long.Parse(Console.ReadLine());
            obj.PopulareCampuri(x, 3.5M, AccountType.Deposit);

            Console.WriteLine("Contul meu are numarul {0}, este de tip {1} si are o suma de {2}",
                obj.NumarCont(), obj.ReturnTipCont(), obj.Sold());

            Console.ReadKey();
        }
    }
}