Help needed on c# banking application.

Martha Inkono

Hi there,

I'm trying to create a banking application in C# that is menu driven. But I cant seem to get it right. So far I have declared all the variables I deemed necessary. Though, When I try to read them in the main, an error occurs. Also so far I have made switch statement in the main for my menu. I try to run the program but it just displays the "press any key to continue..." message. Please help, this would really improve my understanding of how c# works.

Kind regards

Martha

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ashish12y ago
account.Read();

your mistake is this, you have made read method in person class. but you are calling it from the account class instance in case 1.

mark it if you accept this answer
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Martha Inkono12y ago
I posted the code, it is working now but I still need to set overdraft limit. Also case 4 needs some fixing to correctly display data i have entered in case 1. Please give input on what I should do ? Please.
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Martha Inkono12y ago
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace BankAccountApp
{
class Person
{
private string lastName;
private string firstName;
private string gender;
private string dateOfBirth;
private string residentialAddress;

public void Read()
{
Console.Write("Enter Last Name: ");
lastName = Console.ReadLine();
Console.Write("Enter First Name: ");
firstName = Console.ReadLine();
Console.Write("Enter Gender: ");
gender = Console.ReadLine();
Console.Write("Enter Date of Birth: ");
dateOfBirth = Console.ReadLine();
Console.Write("Enter Residential Address: ");
residentialAddress = Console.ReadLine();
}

public void Display()
{
Console.WriteLine("Enter Last Name: {0}", lastName);
Console.WriteLine("Enter First Name: {0}", firstName);
Console.WriteLine("Enter Gender: {0}", gender);
Console.WriteLine("Enter Date of Birth: {0}", dateOfBirth);
Console.WriteLine("Enter Residential Address: {0}", residentialAddress);
}

public void Displays()
{
Console.WriteLine("1.Create New Account");
Console.WriteLine("2.Credit Account");
Console.WriteLine("3.Withdraw");
Console.WriteLine("4.Display Account");
Console.WriteLine("5.Exit");
}

class Account : Person
{
private string accountNumber;
private string accountType;
private double balance;
private double creditAccount;
private double withdraw;
private double overDraftLimit;
private int dateAccountWasOpened;

public Account()
{
balance = 0;
overDraftLimit = 1000;
accountNumber = "";
}

public void Credit(double amount)
{
balance += amount;
}

public void Withdraw(double amount)
{
balance -= amount;
}

public double GetBalance()
{
return balance;
}

}

class Program
{
static void Main(string[] args)
{
Person person = new Person();

Console.WriteLine();
Console.WriteLine("********************************");
Console.WriteLine("* MAKE YOUR SELECTION *");
Console.WriteLine("********************************");
person.Displays();

Account account = new Account();

double amount;
int selection;
string selectionString;
Console.WriteLine("Enter Selection: ");
selectionString = Console.ReadLine();
selection = int.Parse(selectionString);

switch (selection)
{
case 1: account.Read();
break;
case 2: Console.Write("Enter Amount to Pay: ");
amount = double.Parse(Console.ReadLine());
account.Credit(amount);
Console.WriteLine("Account Balance : {0}", account.GetBalance());
break;
case 3: Console.Write("Enter Amount to Withdraw: ");
amount = double.Parse(Console.ReadLine());
account.Withdraw(amount);
Console.WriteLine("Account Balance : {0}", account.GetBalance());
break;
case 4: Console.Write("Displaying Account Details: ");

Console.WriteLine("********************************");
Console.WriteLine("*PERSON DETAILS*");
Console.WriteLine("********************************");
person.Display();
Console.ReadKey();
Console.WriteLine("*ACCOUNT DETAILS*");
Console.WriteLine("Balance before Payment: {0}",account.GetBalance());
account.Credit(0);
Console.WriteLine();
Console.WriteLine("Balance after Payment: {0}", account.GetBalance());
account.Withdraw(0);
Console.WriteLine();
Console.WriteLine("Balance after Withdrawal: {0}", account.GetBalance());
Console.ReadKey();
break;
case 5: Console.Write("... EXITING ");
break;
default: Console.WriteLine("Invalid input");
break;
} while (selection != 5);

}
}
}
}
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Martha Inkono12y ago
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace BankAccountApp
{
class Person
{
private string lastName;
private string firstName;
private string gender;
private string dateOfBirth;
private string residentialAddress;

public void Read()
{
Console.Write("Enter Last Name: ");
lastName = Console.ReadLine();
Console.Write("Enter First Name: ");
firstName = Console.ReadLine();
Console.Write("Enter Gender: ");
gender = Console.ReadLine();
Console.Write("Enter Date of Birth: ");
dateOfBirth = Console.ReadLine();
Console.Write("Enter Residential Address: ");
residentialAddress = Console.ReadLine();
}

public void Display()
{
Console.WriteLine("Enter Last Name: {0}", lastName);
Console.WriteLine("Enter First Name: {0}", firstName);
Console.WriteLine("Enter Gender: {0}", gender);
Console.WriteLine("Enter Date of Birth: {0}", dateOfBirth);
Console.WriteLine("Enter Residential Address: {0}", residentialAddress);
}

public void Displays()
{
Console.WriteLine("1.Create New Account");
Console.WriteLine("2.Credit Account");
Console.WriteLine("3.Withdraw");
Console.WriteLine("4.Display Account");
Console.WriteLine("5.Exit");
}

class Account : Person
{
private string accountNumber;
private string accountType;
private double balance;
private double creditAccount;
private double withdraw;
private double overDraftLimit;
private int dateAccountWasOpened;

public Account()
{
balance = 0;
overDraftLimit = 1000;
accountNumber = "";
}

public void Credit(double amount)
{
balance += amount;
}

public void Withdraw(double amount)
{
balance -= amount;
}

public double GetBalance()
{
return balance;
}

}

class Program
{
static void Main(string[] args)
{
Person person = new Person();

Console.WriteLine();
Console.WriteLine("********************************");
Console.WriteLine("* MAKE YOUR SELECTION *");
Console.WriteLine("********************************");
person.Displays();

Account account = new Account();

double amount;
int selection;
string selectionString;
Console.WriteLine("Enter Selection: ");
selectionString = Console.ReadLine();
selection = int.Parse(selectionString);

switch (selection)
{
case 1: account.Read();
break;
case 2: Console.Write("Enter Amount to Pay: ");
amount = double.Parse(Console.ReadLine());
account.Credit(amount);
Console.WriteLine("Account Balance : {0}", account.GetBalance());
break;
case 3: Console.Write("Enter Amount to Withdraw: ");
amount = double.Parse(Console.ReadLine());
account.Withdraw(amount);
Console.WriteLine("Account Balance : {0}", account.GetBalance());
break;
case 4: Console.Write("Displaying Account Details: ");

Console.WriteLine("********************************");
Console.WriteLine("*PERSON DETAILS*");
Console.WriteLine("********************************");
person.Display();
Console.ReadKey();
Console.WriteLine("*ACCOUNT DETAILS*");
Console.WriteLine("Balance before Payment: {0}",account.GetBalance());
account.Credit(0);
Console.WriteLine();
Console.WriteLine("Balance after Payment: {0}", account.GetBalance());
account.Withdraw(0);
Console.WriteLine();
Console.WriteLine("Balance after Withdrawal: {0}", account.GetBalance());
Console.ReadKey();
break;
case 5: Console.Write("... EXITING ");
break;
default: Console.WriteLine("Invalid input");
break;
} while (selection != 5);

}
}
}
}
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Munesh Sharma12y ago
write code dude.
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Nitesh Kejriwal12y ago
Posting some code will be of great help!
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Anubhav Bhatnagar12y ago
Cheack switch Syntax and the value you are getting in CASES.
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