I'm working on a program where I have an issue sorting my list. (I just started with Linked List)
Can you help me with how to sort the list from the code I just wrote? Or suggest me a code for it?


Here is my code :
//124. I. Write a Java program to find the index of a value in a sorted array. II.If the value does not find return the index where it would be if it were inserted in order.
// My approach is to convert the array to a list. For case II, I planned to add the value to the list, sort it and then get the index. 
 
import java.util.*;
 
public class indexSortedArray {
    public static void main(String[] args) {
 
        Integer[] nums = { 1, 2, 4, 5, 6 };
 
        List<Integer> list = Arrays.asList(nums);
 
        java.util.LinkedList<Integer> linkedList = new java.util.LinkedList<Integer>(list);
        linkedList.add(0);
 
 
        System.out.println("LinkedList of above array : "
                + linkedList);
 
        // int getIndex = Arrays.asList(nums).indexOf(0);
        // System.out.println("0 is located at " + getIndex + " index");
 
        // if (getIndex == -1) {
        // Arrays.asList(nums).add(0);
        // }
    }
 
}

I tried several approaches but it didn't work. My last approach was with the following piece of code I added but didn't do work so I removed it. 
public Node head = null;
 
    public void sortList() {
 
        // Node current will point to head
        Node current = head, index = null;
 
        int temp;
 
        if (head == null) {
            return;
        } else {
            while (current != null) {
                // Node index will point to node next to
                // current
                index = current.next;
 
                while (index != null) {
                    // If current node's data is greater
                    // than index's node data, swap the data
                    // between them
                    if (current.data > index.data) {
                        temp = current.data;
                        current.data = index.data;
                        index.data = temp;
                    }
 
                    index = index.next;
                }
                current = current.next;
            }
        }
    }