Added Exception for the Queue

Aufgabe3/ConsoleApplication1/Buffer.cs

 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
 using System.Threading;
 
 namespace ConsoleApplication1
@@ -25,7 +27,7 @@ namespace ConsoleApplication1
             // Check whether the Queue is full and throws an Exception if so.
             if (_carQueue.Count == _size)
             {
-                throw new Exception("Buffer full");
+                throw new QueueFullException("Buffer full");
             }  
             
             _carQueue.Enqueue(c);
@@ -36,7 +38,7 @@ namespace ConsoleApplication1
         {
             if (_carQueue.Count == 0)
             {
-                throw new Exception("Buffer empty");
+                throw new QueueEmptyException("Buffer empty");
             }
 
             return _carQueue.Dequeue();
@@ -60,4 +62,17 @@ namespace ConsoleApplication1
             return this._mutex;
         }
     }
+    
+}
+
+public class QueueEmptyException : Exception
+{
+    public QueueEmptyException(string bufferEmpty)
+        : base (bufferEmpty) { }
+}
+
+public class QueueFullException : Exception
+{
+    public QueueFullException(string bufferEmpty)
+        : base (bufferEmpty) { }
 }