Parameterize references to generic types. (#5078)

* chore: remove unused imports

* fix: parameterize references to generic types


---------

Co-authored-by: vil02 <65706193+vil02@users.noreply.github.com>

src/main/java/com/thealgorithms/datastructures/dynamicarray/DynamicArray.java

@@ -145,7 +145,7 @@ public class DynamicArray<E> implements Iterable<E> {
      * @return Iterator a Dynamic Array Iterator
      */
     @Override
-    public Iterator iterator() {
+    public Iterator<E> iterator() {
         return new DynamicArrayIterator();
     }
 

src/main/java/com/thealgorithms/datastructures/lists/CircleLinkedList.java

@@ -53,7 +53,7 @@ public class CircleLinkedList<E> {
 
     // utility function for traversing the list
     public String toString() {
-        Node p = head.next;
+        Node<E> p = head.next;
         String s = "[ ";
         while (p != head) {
             s += p.value;
@@ -91,7 +91,7 @@ public class CircleLinkedList<E> {
     }
 
     public static void main(String[] args) {
-        CircleLinkedList cl = new CircleLinkedList<String>();
+        CircleLinkedList<Integer> cl = new CircleLinkedList<>();
         cl.append(12);
         System.out.println(cl);
         cl.append(23);

src/main/java/com/thealgorithms/datastructures/lists/CursorLinkedList.java

@@ -134,7 +134,7 @@ public class CursorLinkedList<T> {
     }
 
     private void free(int index) {
-        Node os_node = cursorSpace[os];
+        Node<T> os_node = cursorSpace[os];
         int os_next = os_node.next;
         cursorSpace[os].next = index;
         cursorSpace[index].element = null;