diff --git a/Queue.java b/Queue.java
index d7a66a3..5c7049f 100644
--- a/Queue.java
+++ b/Queue.java
@@ -10,10 +10,10 @@ public class Queue<ContentType> {
 
     public void enqueue( ContentType pContentObject ) {
         if (head == null) {
-            head = new QueueNode<ContentType>(pContentObject);
+            head = new QueueNode<>(pContentObject);
             tail = head;
         } else {
-            QueueNode<ContentType> node = new QueueNode<ContentType>(pContentObject);
+            QueueNode<ContentType> node = new QueueNode<>(pContentObject);
             tail.setNext(node);
             tail = node;
         }
diff --git a/Stack.java b/Stack.java
index 7c9637b..3863fd3 100644
--- a/Stack.java
+++ b/Stack.java
@@ -9,11 +9,11 @@ public class Stack<ContentType> {
 
     public void push( ContentType pContentObject ) {
         if (head != null) {
-            StackNode<ContentType> node = new StackNode<ContentType>(pContentObject);
+            StackNode<ContentType> node = new StackNode<>(pContentObject);
             node.setNext(head);
             head = node;
         } else {
-            head = new StackNode<ContentType>(pContentObject);
+            head = new StackNode<>(pContentObject);
         }
     }