From 758bfcd0f232829411d125e84beb6f2a27adf6ce Mon Sep 17 00:00:00 2001
From: Andreas Zweili <andreas@capricorn>
Date: Sat, 10 Jun 2017 11:35:30 +0200
Subject: [PATCH] extend the collections excercise

---
 .../1_sem/collections/collections/Program.cs  | 44 ++++++++++++++++---
 1 file changed, 39 insertions(+), 5 deletions(-)

diff --git a/software/1_sem/collections/collections/Program.cs b/software/1_sem/collections/collections/Program.cs
index 737bec6..6be078e 100644
--- a/software/1_sem/collections/collections/Program.cs
+++ b/software/1_sem/collections/collections/Program.cs
@@ -8,16 +8,50 @@ namespace collections
         public static void Main(string[] args)
         {
           List<CD> cdList = new List<CD>();
-          cdList.Add(new CD("Amy McDonald", "This is the life")); 
-          cdList.Add(new CD("Arch Enemy", "This is War")); 
+          cdList.Add(new CD("Amy McDonald", "This is the life"));
+          cdList.Add(new CD("Arch Enemy", "This is War"));
           cdList.Add(new CD("Fleshgod Apocalypse", "Agony"));
 
             foreach (var item in cdList)
             {
-               Console.WriteLine(item.Interpret + " " + item.AlbumTitel); 
+               Console.WriteLine("List:" + item.Interpret + " " + item.AlbumTitel);
             }
-            
+
           cdList.Add(new CD("Fleshgod Apocalypse", "Agony"));
+
+         // example code for a queue
+          Queue<CD> cdQueue = new Queue<CD>();
+          cdQueue.Enqueue(new CD("Winterfyleth","Forest"));
+          cdQueue.Enqueue(new CD("Einherjer","Winter"));
+          cdQueue.Enqueue(new CD("Wintersun","Time 1"));
+
+          CD result = cdQueue.Peek();
+          Console.WriteLine("Queue:" + result.Interpret);
+          cdQueue.Dequeue();
+          CD result2 = cdQueue.Peek();
+          Console.WriteLine("Queue:" + result2.Interpret);
+
+          foreach (var queueitem in cdQueue)
+          {
+           Console.WriteLine("Queue:" + queueitem.Interpret);
+          }
+
+         //example code for a stack
+          Stack<CD> cdStack = new Stack<CD>();
+          cdStack.Push(new CD("Dimmu Borgir","Dimmu Borgir"));
+          cdStack.Push(new CD("Children of Bodom","Are you dead yet"));
+          cdStack.Push(new CD("Windir","1184"));
+
+          CD topcd = cdStack.Peek();
+          Console.WriteLine("Stack:" + topcd.Interpret);
+
+          CD takeawaycd = cdStack.Pop();
+          Console.WriteLine("Stack:" + takeawaycd.Interpret);
+
+          foreach (var stackitem in cdStack)
+          {
+           Console.WriteLine("Stack:" + stackitem.Interpret);
+          }
         }
     }
-}
\ No newline at end of file
+}