getNext() Linked List
java, linked-list, list
Solution
You keep on asking for the second element from the LinkedList.
edgeLine = link.getNext();
sets the value of second element of the LinkedList link into `edgeLine`, and then you loop and do the same, and then the same over and over and over again.
Try doing
edgeLine = edgeLine.getNext();
This will keep on moving.
Problem
I'm really new to Java and StackOverflow so please don't be mean. I would really appreciate some help. Thank you in advanced. I feel like this is really easy and I've already tried this out a million different ways but it's not working. I am trying to take in a text file and store it into a linked list and I'm trying to access the third node of this linked list. For some reason, I can access the first node, then I can use the getNext() command to go to the next node, but when I try to use getNext() to go the third node, it continues to return the second node. So it is not going to third node. Am I just missing some key concept? Also let me know if you need anymore information. The text file that is being taken in is: 5 A B C D E A B //This is the line that I want B C B D C D C E D E Here is part of my code: ``` public static void main(String[] args) throws IOException{ /** * Check whether the user types the command correctly */ if (args.length != 1) { System.out.println("Invalid input"); System.out.println(args.length); System.exit(1); } String filename = args[0]; Scanner input = new Scanner (new File(filename)); LinkedList<String> linkedList= new LinkedList<String>(); while(input.hasNext()) { linkedList.addToRear(input.nextLine()); } LinearNode<String> link= linkedList.firstLink; String temp = " "; link.getNext(); temp = (String)link.getElement(); String[] numofVerticesArray = temp.split(" "); int numOfVertices = Integer.parseInt(numofVerticesArray[0]); int lineNumber = 1; String [] arrayOfVertices; LinearNode<String> secondLine = link; String temp2; for (int i=0; i <= lineNumber; i++) { secondLine = link.getNext(); } lineNumber = 2; temp2 = (String)secondLine.getElement(); arrayOfVertices = temp2.split(" "); int[][] adjMatrix = new int[numOfVertices][numOfVertices]; LinearNode<String> edgeLine = link; String [] arrayOfEdge; int rowCount = 0; int columnCount = 0; String temp3; lineNumber = 2; for (int i=0; i <= lineNumber; i++) { edgeLine = link.getNext(); System.out.print((String)edgeLine.getElement()); //When this is printed out, the second node's //content is printed out, not the third node } lineNumber++; temp3 = (String)edgeLine.getElement(); arrayOfEdge = temp3.split(" "); ```