Question

How would I do an additional method to print the output in an ordered, ascending sequence?

import java.util.*;
import java.util.Scanner;
import java.io.*;
public class LinLinkedList{
public static void main(String [] args){
    LinkedList list = new LinkedList();
    Scanner in = new Scanner(System.in);
    int n = 0;
    while (!(n<0)){
        System.out.println("Enter a number: ");
        n = in.nextInt();
        list.add(n);
        }
    System.out.println(list);
    }
}

Answer 1

Adding if(n>0) just before list.add(n); will solve it. Then you will have only positive values in your linked list. To sort your list in ascending order, you can use Collections.sort(list); as Guiilaume Polet suggested. After the while loop, use this sorting method and then print the contents of the linked list.