impl: cll to array list

assignment/src/main/java/appointmentplanner/customlist/CustomLinkedListImpl.java

@@ -1,5 +1,6 @@
 package appointmentplanner.customlist;
 
+import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.function.Predicate;
 
@@ -122,6 +123,7 @@ public class CustomLinkedListImpl<T> implements CustomLinkedList<T> {
     }
 
     CustomLinkedListNode<T> nodeBefore = traverseFind(head, reference, ItemPosition.BEFORE);
+
     CustomLinkedListNode<T> nodeToInsert = new CustomLinkedListNode<>(nodeBefore.getNext(), item);
     nodeBefore.setNext(nodeToInsert);
   }
@@ -204,4 +206,18 @@ public class CustomLinkedListImpl<T> implements CustomLinkedList<T> {
     return items;
   }
 
+  private ArrayList<T> mapToArrayList(CustomLinkedListNode<T> node, ArrayList<T> list) {
+    if (node == null) {
+      return list;
+    }
+    mapToArrayList(node.getNext(), list);
+    list.add(node.getItem());
+    return list;
+  }
+
+  @Override
+  public ArrayList<T> toArrayList() {
+    return mapToArrayList(head, new ArrayList<>());
+  }
+
 }