using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace MyDelegate

{

    public class Account

    {

        private string Name;

        private string Address;

        private double Balance;

        public Account(string n,string a)

        {

            Name=n;

            Address=a;

            Balance=0.0;

        }

        public void AddToBalance(double amount)

        {

            Balance+=amount;

        }

        public void RemoveFromBalance(double amount)

        {

            Balance-=amount;

        }

        public string getName()

        {

            return Name;

        }

        public string getAddress()

        {

            return Address;

        }

        public double getBalance()

        {

            return Balance;

        }

    }

    public class AccountHolder

    {

        public AccountHolder()

        {

        }

        public Boolean AccountInc(Account a,double amt)

        {

            a.AddToBalance(amt);

            return true;

        }

        public Boolean AccountDec(Account a,double amt)

        {

            a.RemoveFromBalance(amt);

            return true;

        }

    }

    public class AccountDB

    {

        Account[] accounts;

        int nNumAccounts;

        public delegate Boolean IncrementAccountDelegate(Account a,double d);

        public delegate Boolean DecrementAccountDelegate(Account a,double d);

        public AccountDB()

        {

            accounts=new Account[10];

            nNumAccounts=0;

        }

        public void AddAccount(string n,string a)

        {

            accounts[nNumAccounts++]=new Account(n,a);

        }

        public void PostToAccount(int nAcct,double d,IncrementAccountDelegate inc,DecrementAccountDelegate dec)

        {

            if(d<0)

                dec(accounts[nAcct],-d);

            else

                inc(accounts[nAcct],d);

        }

        public void PrintAccountStatus()

        {

            for(int i=0;i<nNumAccounts;++i)

            {

                Console.WriteLine("Name:{0} \nAddress:{1} \nBalance:{2}",accounts[i].getName(),accounts[i].getAddress(),accounts[i].getBalance());

            }

        }

    }

public class Program

{

    public static void Main(string[] args)

    {

        AccountHolder ah=new AccountHolder();

        AccountDB adb=new AccountDB();

        adb.AddAccount("Deep Fanse", "A/26, Johny Bhai's Corner, Airoli");

        adb.AddAccount("Kumar Rathod", "420, Kalyan Chowl, Kalyan");

        adb.AddAccount("Ajit Komurlekar", "420, Bhandup West, Bhandup");

        adb.AddAccount("Suvarna Bhise", "786, Powai Bala, Powai");

        AccountDB.IncrementAccountDelegate iad=new AccountDB.IncrementAccountDelegate(ah.AccountInc);

        AccountDB.DecrementAccountDelegate dad=new AccountDB.DecrementAccountDelegate(ah.AccountDec);

        adb.PostToAccount(0,10000.00,iad,dad);

        adb.PostToAccount(0,200.00,iad,dad);

        adb.PostToAccount(0,-50.00,iad,dad);

        adb.PostToAccount(1,500.00,iad,dad);

        adb.PostToAccount(1,300.00,iad,dad);

        adb.PostToAccount(1,-150.00,iad,dad);

        adb.PrintAccountStatus();

        Console.Write("\nPress Enter to Quit..");

        Console.ReadLine();

    }

}

}