getIndex-Hilfsmethode implementiert

SimpleLinkedList/src/solution/SimpleLinkedList.java

@@ -85,4 +85,24 @@ public class SimpleLinkedList<E> extends AbstractSimpleList<E> {
 			}
 		}
 	}
+
+	private Node<E> getIndex(int i) {
+
+		if (i < 0 || size <= i) {
+			return null;
+		}
+		Node<E> currentNode = firstNode;
+		int currentIndex = 0;
+		while (currentNode != null) {
+			if (currentIndex >= i) {
+
+				if (currentNode.getPayload() != null) {
+					return currentNode;
+				}
+			}
+			currentNode = currentNode.getSuccessor();
+			currentIndex++;
+		}
+		return null;
+	}
 }