C# Console Application (Bank)

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

namespace Bank
{
    class Errors:Exception
    {
        public Errors(string ErrorMsg)
            : base(ErrorMsg)
        {

        }

    }
    class Accounts
    {
        public int[] index;
        public string Acc_no = "", C_name = "", C_add = "";
        public double Balance = 0;
        int Age;
        public Accounts() { }
        public Accounts(String Acc_no, string C_name,int Age, String C_add, double Balance)
        {
            //int[] index,
            //this.index = index;
            this.Acc_no = Acc_no;
            this.C_name = C_name;
            this.C_add = C_add;
            this.Balance=Balance;
        }

        public int Create_Acc()
        {
            //for (int i = 0; i < index.Length;i++ )
            //{

            //}
            try
            {
                Console.Write("Enter The Account Number:\t");
                Acc_no = Console.ReadLine();
                if (Acc_no == null)
                    throw new Errors("You must enter the Account number!");
                
                Console.Write("Enter The Customer Name:\t");
                C_name = Console.ReadLine();
                if (C_name == null)
                    throw new Errors("You must enter the Account number!");
                
                Console.Write("Age:\t\t\t\t");
                Age = int.Parse(Console.ReadLine());
                if (Age <=0)
                    throw new Errors("You must enter the Account number!");
                
                Console.Write("Enter The Address:\t\t");
                C_add = Console.ReadLine();
                if (C_add == null)
                    throw new Errors("You must enter the Account number!");
                
                Console.Write("Deposite amount:\t\t");
                Balance = double.Parse(Console.ReadLine());
                if (Balance <= 0)
                    throw new Errors("You must enter the Account number!");
            }
            catch(Errors e)
            {
                Console.Write(e.Message);
            }
            
            return 1;

        }

        public void Acc_Availability(string Acc_num)
        {
            if (Acc_no.Equals(Acc_num))
            {
                Console.WriteLine("-----------------------------****************-----------------------------");
                Console.WriteLine("Account Number:\t"+Acc_no);
                Console.WriteLine("Name:\t\t"+C_name);
                Console.WriteLine("Age:\t\t" + Age);
                Console.WriteLine("Address:\t" + C_add);
                Console.WriteLine("Balance: \t$" + Balance);
                Console.WriteLine("-----------------------------****************-----------------------------");
            }
            else
            {
                Console.WriteLine("Account does not exist!");
            }
        }
        public void Deposite(string Acc_num)
        {
            try
            {


                if (Acc_no.Equals(Acc_num))
                {
                    Console.Write("Enter the amount:\t\t");
                    int Amount = int.Parse(Console.ReadLine());
                    if (Amount <= 0)
                        throw new Errors("Amount must be larger than $0");
                    else
                        this.Balance = Balance + Amount;

                    Console.WriteLine("-----------------------------****************-----------------------------");
                    Console.WriteLine("Balance is:  $" + Balance);
                    Console.WriteLine("-----------------------------****************-----------------------------");
                }
                else
                {
                    Console.WriteLine("Account does not exist!");
                }
            }
            catch(Errors e)
            {
                Console.BackgroundColor = ConsoleColor.White;
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine(e.Message);
                Console.BackgroundColor = ConsoleColor.Black;
                Console.ForegroundColor = ConsoleColor.White;
            }
        }
        public void Withdraw(string Acc_num)
        {
            if (Acc_no.Equals(Acc_num))
            {
                Console.Write("Enter the amount:\t\t");
                int Amount = int.Parse(Console.ReadLine());
                if (Balance == 0)
                {
                    Console.WriteLine("Insufficient balance");

                }
                else if (Amount > Balance)
                {
                    Console.WriteLine("Insufficient balance");
                }
                else
                {
                    Balance = Balance - Amount;
                    Console.WriteLine("Balance: $"+Balance);
                }
            }
            else
            {
                Console.WriteLine("Account does not exist!");
            }
        }
        public void Balenquiry()
        {
            Console.WriteLine("Your baance is: " + Balance);
        }

    }
    class Program
    {
        static void Main(string[] args)
        {
            //char ch;
            int result;
            String Acc_num,ch;
            //double depositeamount;
            //double withdrawamount;

            Accounts Acc = new Accounts();
            //try
            //{

           
                for (; ; )
                {
                    Console.WriteLine("----------------------------------------------------------------------");
                    Console.WriteLine("1.New Acoount\t2.Enquiry\t3.Deposit\t4.Withdraw\t5.Exit");
                    Console.WriteLine("----------------------------------------------------------------------");
                    ch = Console.ReadLine();
                    
                    switch (ch)
                    {
                        case "1": 
                            
                            result=Acc.Create_Acc();
                            if(result==1)
                            {
                                Console.WriteLine("Account number \"{0}\" Created Successfuly", Acc.Acc_no);
                            }
                            else
                            {
                                Console.WriteLine("Account could not be created! Try again.");
                            }
                            
                            break;

                        case "2":
                            
                            Console.Write("Enter the Account Number:\t");
                            Acc_num=Console.ReadLine();
                            Acc.Acc_Availability(Acc_num);
                            break;

                        case "3":
                            
                            Console.Write("Enter the Account Number:\t");
                            Acc_num=Console.ReadLine();
                            Acc.Deposite(Acc_num);
                            break;

                        case "4":
                            
                            Console.Write("Enter The Customer Account Number:  ");
                            Acc_num = Console.ReadLine();
                            Acc.Withdraw(Acc_num);
                            break;
                        
                        case "5": 
                            
                            System.Environment.Exit(0);
                            break;

                        default:
                            
                            Console.WriteLine("invalid choice!");
                            break;
                    }
                }
             }
            //catch(Errors e)
            //{
            //    Console.WriteLine(e.Message);
            //}
            //}
             
        
    }
}