Introduction to classes - fix argument's list, code formatting (dotnet#4050)

* sync method's argument list with sample's code

* small code formatting

* to follow coding conventions by Microsoft

Author: Goraf

docs/csharp/quick-starts/introduction-to-classes.md

@@ -64,7 +64,7 @@ namespace classes
         {
         }
 
-        public void MakeWithdrawal(decimal amount, DateTime date, string payee, string note)
+        public void MakeWithdrawal(decimal amount, DateTime date, string note)
         {
         }
     }
@@ -164,9 +164,11 @@ Next, test that you are catching error conditions by trying to create an account
 
 ```csharp
 // Test that the initial balances must be positive:
-try {
+try
+{
     var invalidAccount = new BankAccount("invalid", -55);
-} catch (ArgumentOutOfRangeException e)
+}
+catch (ArgumentOutOfRangeException e)
 {
     Console.WriteLine("Exception caught creating account with negative balance");
     Console.WriteLine(e.ToString());
@@ -177,9 +179,11 @@ You use the [`try` and `catch` statements](../language-reference/keywords/try-ca
 
 ```csharp
 // Test for a negative balance
-try {
+try
+{
     account.MakeWithdrawal(750, DateTime.Now, "Attempt to overdraw");
-} catch (InvalidOperationException e)
+}
+catch (InvalidOperationException e)
 {
     Console.WriteLine("Exception caught trying to overdraw");
     Console.WriteLine(e.ToString());

samples/csharp/classes-quickstart/BankAccount.cs

@@ -13,8 +13,11 @@ public decimal Balance
             get
             {
                 decimal balance = 0;
-                foreach(var item in allTransactions)
+                foreach (var item in allTransactions)
+                {
                     balance += item.Amount;
+                }
+
                 return balance;
             }
         }
@@ -26,7 +29,7 @@ public BankAccount(string name, decimal initialBalance)
         {
             this.Number = accountNumberSeed.ToString();
             accountNumberSeed++;
-            
+
             this.Owner = name;
             MakeDeposit(initialBalance, DateTime.Now, "Initial balance");
         }
@@ -40,17 +43,23 @@ public BankAccount(string name, decimal initialBalance)
         public void MakeDeposit(decimal amount, DateTime date, string note)
         {
             if (amount <= 0)
+            {
                 throw new ArgumentOutOfRangeException(nameof(amount), "Amount of deposit must be positive");
+            }
             var deposit = new Transaction(amount, date, note);
             allTransactions.Add(deposit);
         }
 
         public void MakeWithdrawal(decimal amount, DateTime date, string note)
         {
             if (amount <= 0)
+            {
                 throw new ArgumentOutOfRangeException(nameof(amount), "Amount of withdrawal must be positive");
+            }
             if (Balance - amount < 0)
+            {
                 throw new InvalidOperationException("Not sufficient funds for this withdrawal");
+            }
             var withdrawal = new Transaction(-amount, date, note);
             allTransactions.Add(withdrawal);
         }
@@ -63,7 +72,9 @@ public string GetAccountHistory()
 
             report.AppendLine("Date\t\tAmount\tNote");
             foreach (var item in allTransactions)
+            {
                 report.AppendLine($"{item.Date.ToShortDateString()}\t{item.Amount}\t{item.Notes}");
+            }
 
             return report.ToString();
         }

samples/csharp/classes-quickstart/Program.cs

@@ -17,23 +17,26 @@ static void Main(string[] args)
             Console.WriteLine(account.GetAccountHistory());
 
             // Test that the initial balances must be positive:
-            try {
+            try
+            {
                 var invalidAccount = new BankAccount("invalid", -55);
-            } catch (ArgumentOutOfRangeException e)
+            }
+            catch (ArgumentOutOfRangeException e)
             {
                 Console.WriteLine("Exception caught creating account with negative balance");
                 Console.WriteLine(e.ToString());
             }
 
             // Test for a negative balance
-            try {
+            try
+            {
                 account.MakeWithdrawal(750, DateTime.Now, "Attempt to overdraw");
-            } catch (InvalidOperationException e)
+            }
+            catch (InvalidOperationException e)
             {
                 Console.WriteLine("Exception caught trying to overdraw");
                 Console.WriteLine(e.ToString());
             }
-
         }
     }
 }

samples/csharp/classes-quickstart/transaction.cs

@@ -7,6 +7,7 @@ public class Transaction
         public decimal Amount { get; }
         public DateTime Date { get; }
         public string Notes { get; }
+
         public Transaction(decimal amount, DateTime date, string note)
         {
             this.Amount = amount;