Add else clause for node (TheAlgorithms#3014)

Co-authored-by: Samir M'Sallem <[email protected]>
Co-authored-by: Andrii Siriak <[email protected]>

Author: 3 people

src/main/java/com/thealgorithms/datastructures/hashmap/hashing/HashMap.java

@@ -105,6 +105,8 @@ private void delete(Node n, int key) {
                 } else {
                     n.setNext(n.getNext().getNext());
                 }
+            } else {
+                delete(n.getNext(), key);
             }
         }