add(i,e)-Methode implementiert

SimpleLinkedList/src/solution/SimpleLinkedList.java

@@ -125,4 +125,29 @@ public class SimpleLinkedList<E> extends AbstractSimpleList<E> {
 		}
 		return false;
 	}
+
+	public void add(int i, E e) throws IndexOutOfBoundsException {
+		if (size == 0) {
+			if (i != 0) {
+				throw new IndexOutOfBoundsException("Index " + i + " is out of bounds!");
+			}
+			set(0, e);
+
+		} else if (size > 0) {
+			if (i == size) {
+				add(e);
+			}
+
+		} else if (size > 0 && i < size) {
+			Node<E> newNode = new Node<>(e);
+
+			Node<E> tempNode = getIndex(i);
+			Node<E> preTempNode = getIndex(i).getPredecessor();
+
+			preTempNode.setSuccessor(newNode);
+			newNode.setPredecessor(preTempNode);
+			newNode.setSuccessor(tempNode);
+			tempNode.setPredecessor(newNode);
+		}
+	}
 }