diff --git a/Auto.java b/Auto.java
index 8659f61..65740ad 100644
--- a/Auto.java
+++ b/Auto.java
@@ -1,4 +1,4 @@
-import java.util.random
+import java.util.Random;
 
 public class Auto
   {
diff --git a/List.java b/List.java
index 23c144b..5052117 100644
--- a/List.java
+++ b/List.java
@@ -25,7 +25,8 @@ public class List<T>
     }
     
     public T get(int n) {
-        Node<T> current = first;
+        
+     Node<T> current = first;
         
         for (int i = 0; i < n; i++) {
             if (current == null) return null;
@@ -65,7 +66,7 @@ public class List<T>
             first = neu;
             return;
         }
-        
+        Node<T> current = first;
         for (int i = 0; i < n-1; i++){
             current = current.next;
         }
@@ -85,6 +86,29 @@ public class List<T>
     }
     
     public T remove(int n) {
+        if (n >= size()) return null;
+        if (n == 0) {
+            T tmp = first.wert;
+            return tmp;
+        }
+        Node<T> current = first;
+        
+        for (int i = 0; i< n-1; i++)
+        {
+            current = current.next;
+        }
+        T tmp = current.next.wert;
+        current.next = current.next.next;
+        return tmp;
         
     }
+    public String toString(){
+        String result = "";
+        Node<T> current = first;
+        while (current != null) {
+            result += current.wert + ", ";
+            current = current.next;
+        }
+        return result;
+    }
 }
diff --git a/Node.java b/Node.java
index 957c4bf..90ddc17 100644
--- a/Node.java
+++ b/Node.java
@@ -2,7 +2,7 @@
 public class Node<T>
 {
   public T wert;
-  public Node next;
+  public Node<T> next;
   
   public void setWert(T w){
       this.wert = w;
diff --git a/Queue.java b/Queue.java
new file mode 100644
index 0000000..decdded
--- /dev/null
+++ b/Queue.java
@@ -0,0 +1,65 @@
+public class Queue<T>
+{
+    private Node<T> first;
+    
+    public Queue() {
+        first = null;
+    }
+    
+    public boolean isEmpty() {
+        if (first == null) return true;
+        return false;
+    }
+    
+    
+    
+    public T front(int n) {
+        
+     Node<T> current = first;
+        
+        for (int i = 0; i < n; i++) {
+            if (current == null) return null;
+            current = current.next;
+        }
+        
+        if (current == null) return null;
+        return current.wert;
+    }
+    
+    public void enqueue(T val) {
+        Node<T> neu = new Node<T>();
+        neu.wert = val;
+        
+        if (first == null) {
+            first = neu;
+        } else {
+            Node<T> current = first;
+            while (current.next != null) {
+                current = current.next;
+            }
+            current.next = neu;
+        }
+    }
+    
+   
+    
+  
+    
+    public T dequeue() {
+       T tmp = first.wert;
+       first = first.next;
+       return tmp;
+      
+    }
+    
+    public String toString(){
+        String result = "";
+        Node<T> current = first;
+        while (current != null) {
+            result += current.wert + ", ";
+            current = current.next;
+        }
+        return result;
+    }
+}
+
diff --git a/Rennen.java b/Rennen.java
index 9bc79dc..a60be3e 100644
--- a/Rennen.java
+++ b/Rennen.java
@@ -17,14 +17,14 @@ public class Rennen
 
  }
  public void lasseSchneckenKriechen(){
-     this.teilnehmer1.krieche();
-         this.teilnehmer3.krieche();
-             this.teilnehmer2.krieche();
+     this.teilnehmer1.krieche(1);
+         this.teilnehmer3.krieche(1);
+             this.teilnehmer2.krieche(1);
      
  }
  public Rennschnecke durchfuehren(){
      while(true){
-         this.lasseSchneckenKriechen;
+         this.lasseSchneckenKriechen();
          if(this.teilnehmer1.getStrecke() > this.distanz) {
              return this.teilnehmer1;
          }
diff --git a/Rennschnecke.java b/Rennschnecke.java
index c22d147..8af864a 100644
--- a/Rennschnecke.java
+++ b/Rennschnecke.java
@@ -15,7 +15,10 @@ public class Rennschnecke
      this.max = max;
      this.weg = weg;
    }
- 
+  public double getStrecke()
+  {
+      return weg;
+  }
  }
    
     
diff --git a/Stack.java b/Stack.java
new file mode 100644
index 0000000..7d1ccdb
--- /dev/null
+++ b/Stack.java
@@ -0,0 +1,105 @@
+
+
+public class Stack
+{  private Node<T> first;
+    
+    public List() {
+        first = null;
+    }
+    
+    public boolean isEmpty() {
+        if (first == null) return true;
+        return false;
+    }
+    
+    public int size() {
+        Node<T> current = first;
+        int count = 0;
+        
+        while (current != null) {
+            count++;
+            current = current.next;
+        }
+        
+        return count;
+    }
+    
+    public T get(int n) {
+        
+     Node<T> current = first;
+        
+        for (int i = 0; i < n; i++) {
+            if (current == null) return null;
+            current = current.next;
+        }
+        
+        if (current == null) return null;
+        return current.wert;
+    }
+    
+    public void add(T val) {
+        Node<T> neu = new Node<T>();
+        neu.wert = val;
+        
+        if (first == null) {
+            first = neu;
+        } else {
+            Node<T> current = first;
+            while (current.next != null) {
+                current = current.next;
+            }
+            current.next = neu;
+        }
+    }
+    
+    public void add(int n, T val) {
+        if (n >=size()) {
+            add(val);
+            return;
+        }
+        Node<T> neu = new Node<T>();
+
+        neu.wert = val;
+        
+        if (n==0){
+            neu.next = first;
+            first = neu;
+            return;
+        }
+        Node<T> current = first;
+        for (int i = 0; i < n-1; i++){
+            current = current.next;
+        }
+        neu.next = current.next;
+        current.next = neu;
+        
+    }
+    
+    public boolean contains(T val) {
+        Node<T> current = first;
+        
+        while (current != null) {
+            if (current.wert.equals(val)) return true;
+        }
+        
+        return false;
+    }
+    
+    public T pull(int n) {
+       
+            T tmp = first.wert;
+           first = first.next;
+      
+        return tmp;
+        
+    }
+    public String toString(){
+        String result = "";
+        Node<T> current = first;
+        while (current != null) {
+            result += current.wert + ", ";
+            current = current.next;
+        }
+        return result;
+    }
+}