Merge branch 'main' of https://github.com/MicrosoftLearning/mslearn-develop-oop-csharp

Author: ChrisHowd

DownloadableCodeProjects/Downloads/LP4SampleApps.zip

@@ -0,0 +1,99 @@
+using System;
+using System.Collections.Generic;
+
+namespace BankApp
+{
+    // TASK 1: Define the AccountType enum
+    // TASK 1: Step 1 - Define the AccountType enum
+    public enum AccountType
+    {
+        Checking,
+        Savings,
+        Business
+    }
+
+    public static class AccountTypeExtensions
+    {
+        // TASK 1: Step 2 - Add an extension method to provide descriptions for each AccountType.
+        public static string GetDescription(this AccountType accountType)
+        {
+            return accountType switch
+            {
+                AccountType.Checking => "A standard checking account.",
+                AccountType.Savings => "A savings account with interest.",
+                AccountType.Business => "A business account for companies.",
+                _ => "Unknown account type."
+            };
+        }
+    }
+
+    // TASK 2: Define the Transaction struct
+    // TASK 2: Step 1 - Define the Transaction struct
+    public readonly struct Transaction
+    {
+        public double Amount { get; }
+        public DateTime Date { get; }
+        public string Description { get; }
+
+        public Transaction(double amount, DateTime date, string description)
+        {
+            Amount = amount;
+            Date = date;
+            Description = description;
+        }
+
+        public override string ToString()
+        {
+            return $"{Date.ToShortDateString()}: {Description} - {Amount:C}";
+        }
+    }
+
+    // TASK 3: Define the Customer record
+    // TASK 3: Step 1 - Define the Customer record
+    public record Customer(string Name, string CustomerId, string Address);
+
+    // TASK 4: Implement the BankAccount class
+    // TASK 4: Step 1 - Add properties for AccountNumber, Balance, AccountHolder, and Type.
+    public class BankAccount
+    {
+        public int AccountNumber { get; }
+        public AccountType Type { get; }
+        public Customer AccountHolder { get; }
+        public double Balance { get; private set; }
+
+        // TASK 4: Step 2 - Add a constructor to initialize the properties.
+        public BankAccount(int accountNumber, AccountType type, Customer accountHolder, double initialBalance = 0)
+        {
+            AccountNumber = accountNumber;
+            Type = type;
+            AccountHolder = accountHolder;
+            Balance = initialBalance;
+        }
+
+        // TASK 4: Step 3 - Add a method to deposit money into the account.
+        public void AddTransaction(double amount, string description)
+        {
+            Balance += amount;
+            Transactions.Add(new Transaction(amount, DateTime.Now, description));
+        }
+
+        // TASK 4: Step 4 - Add a method to withdraw money from the account.
+        public string DisplayAccountInfo()
+        {
+            return $"Account Holder: {AccountHolder.Name}, Account Number: {AccountNumber}, Type: {Type}, Balance: {Balance:C}";
+        }
+
+        // TASK 4: Step 5 - Add a method to display account information.
+        private List<Transaction> Transactions { get; } = new();
+
+        // TASK 4: Step 6 - Add a list to track transactions.
+        public void DisplayTransactions()
+        {
+            Console.WriteLine("Transactions:");
+            foreach (var transaction in Transactions)
+            {
+                Console.WriteLine(transaction);
+            }
+        }
+    }
+}