diff --git a/ArrayManipulation.java b/ArrayManipulation.java
index 22b6ed2..f22c7ab 100644
--- a/ArrayManipulation.java
+++ b/ArrayManipulation.java
@@ -1,3 +1,5 @@
+package bonusquiz;
+
 import java.util.Arrays;
 
 public class ArrayManipulation {
@@ -10,13 +12,59 @@ public class ArrayManipulation {
             arr[i] = arr[arr.length - 1 - i];
             arr[arr.length - 1 - i] = tmp;
          }
-         return arr;
+         return arr; 
+    }
+    
+    /*Liefert ein neues Array zurück ohne das erste Element*/
+    public static int[] removeFirst(int[] arr) {
+	
+	int [] arrNeu = {};
+	if(arr.length != 0) {
+	    arrNeu = new int[arr.length-1];
+	    for (int i = 1; i < arr.length; i++) {
+		 arrNeu[i-1] = arr[i];
+	      }
+	}
+         return arrNeu; 
+	
+    }
+    /*Erstellt ein  neues Array ohne das letzte Element*/
+    public static int[] removeLast(int[] arr) {
+    	
+    	int [] arrNeu = {};
+    	    arrNeu = new int[arr.length-1];
+    	    if(arr.length != 0) {
+    	    for (int i =0; i < arr.length -1; i++) {
+    	    		arrNeu[i] = arr[i];	
+    	    	}
+    	      }
+    	
+             return arrNeu; 
+    	
+        }
+    
+    /*Erstellt ein  neues Array wo alle Zahlen quadriert werden*/
 
+    public static int[] squareEach(int[] arr) {
+    	
+    	int [] arrNeu = {};
+    	arrNeu = new int[arr.length];
+    	for (int i=0; i <arr.length; i++) {
+    		arrNeu[i] = arr[i] * arr[i];
+    	}
+		return arrNeu;	
+    	
     }
+    
+        
+    
     public static void main(String[] args) {
        
         int[] arr = {1,2,3,4,5};
+        int [] arr2 = {};
         System.out.println(Arrays.toString(reverseArray(arr)));
-        
+        System.out.println(Arrays.toString(removeFirst(arr)));
+        System.out.println(Arrays.toString(removeLast(arr)));
+        System.out.println(Arrays.toString(squareEach(arr)));
     }
 }