using System;

using System.Collections.Generic;

using System.Linq;

​

public abstract class Accounts{

    public string Account_Number;

    protected double Balance = 0;

    public string Account_id;

    public string Name;

    public void create_Account(string Phone,string First_Name,string last_Name)

    {

        Random objRandom = new Random();

        Account_Number = Convert.ToString(objRandom.Next(10000, 99999));

        Account_id = Phone+ First_Name;

        Name= First_Name+last_Name;

        }

    public void Delete_Account()

    {

        Balance=0;

        Account_Number = "";

        Account_id = "";

        Name = "";

    }

    }

​

public class Saving_Account : Accounts

{

    public string Account_Type;

    public string SA_balance ="";

    public void Deposit_Money(double amount,string Account_Number)

    {

        this.Balance+= amount;

        Console.WriteLine("Amount of $"+amount+"is added to Account Number"+Account_Number);

    }

    public void Withdraw_Money(double amount,string Account_Number)

    {

        this.Balance-= amount;

        Console.WriteLine("Amount of $"+amount+"is Withdraw from Account Number"+Account_Number);

    }

​

    }

​

public class Loan_Account : Saving_Account

{

    public string Loan_Id;

    private double Loan_Amount;

    private double Days;

    public void Loan_Sancation(double LAmount,double days)

    {

        if(Balance>=1000)

        {

        Random objRandom = new Random();

        Loan_Id = Convert.ToString(objRandom.Next(10000, 99999));

        Loan_Amount=LAmount;

        Days=days;  

        Console.WriteLine("Loan Amount of "+ LAmount+ "is sancation at the Interest of 5% for"+ days+"Days");

        Console.WriteLine("Thanks for Your Our Services");

    }

    }

}

​

public  class Customer_Details

   {

    public string first_name;

    public string last_name;

    public string Phone_Number;

    public string Address;

    public void GetCustomerDetails()

    {

        Console.WriteLine("Enter Your First Name");

        string FirstN = Console.ReadLine();

        this.first_name = FirstN;

        Console.WriteLine("Enter Your Last Name");

        string LastN = Console.ReadLine();

        this.last_name = LastN;

        Console.WriteLine("Enter Your Phone Number");

        string PhoneN = Console.ReadLine();

        this.Phone_Number = PhoneN;

        Console.WriteLine("Enter Your Address");

        string Adds = Console.ReadLine();

        this.Address = Adds;

    }

    public void PrintCustomerDetails()

    {

        Console.WriteLine("Customer Details");

        Console.WriteLine("Name:"+first_name+" " +last_name);

        Console.WriteLine("Phone Number:"+Phone_Number);

        Console.WriteLine("Customer Address:"+Address);

    }

    }

​

​

​

​

public class Program

{

    public static void Main(string[] args)

    {

        Customer_Details Newobj = new Customer_Details();

        Saving_Account SAobj= new Saving_Account();

        Loan_Account LAobj= new Loan_Account();

        ShowmainMenu(SAobj,LAobj,Newobj);

    }

    public static  void ShowmainMenu(Saving_Account Sobj,Loan_Account LAobj,Customer_Details Newobj)

    {

        Console.WriteLine("Welcome to the Bank");

        Console.WriteLine("-------------------");

        Console.WriteLine("Please create your Account and enjoy Banking");

        Console.WriteLine("1: Create Account");

        Console.WriteLine("2: Saving Account:Deposit Money");

        Console.WriteLine("3: Saving Account:Withrdraw Money");

        Console.WriteLine("4: Loan Account");

        Console.WriteLine("5: Account Details");

        Console.WriteLine("6: Exist");

        Console.WriteLine("-----------------");

        string command = Console.ReadLine();

        if (command == "1")

        {

            Newobj.GetCustomerDetails();

            if(Sobj.Account_Number == "")

            {

            Sobj.create_Account(Newobj.Phone_Number,Newobj.first_name,Newobj.last_name);

            Console.WriteLine("Your Account is Created: Your Account Details");

            Console.WriteLine("Account Number:"+Sobj.Account_Number);

            Console.WriteLine("Account Id:"+Sobj.Account_id);

            Console.WriteLine("You Can Now Deposit Money");

           Console.WriteLine("Welecom");

            Console.WriteLine("0: Press Zero to Enter Main Menu");

            string opt = Console.ReadLine();

            if(opt == "0")

            {

            ShowmainMenu(Sobj,LAobj,Newobj);

            }

            else 

            { 

                Console.Clear();

                Console.WriteLine("Thanks for Using Our Services. Visit Us Again");

            }

            }

            else

            {

                Console.WriteLine("Account Already Exist");

                Console.WriteLine("Account Details");

                Console.WriteLine("Account Number:"+SAobj.Account_Number);

                Console.WriteLine("Account Id:"+SAobj.Account_id);

            }

        }

        else if (command == "2")

        {

            ShowmainMenu();

        }

    }

}

​