Thread: addInOrder LinkedList

I need to create a LinkedList out of the given strings and as I am adding them sort the entries alphabetically and get rid of duplicates. I got it to not add duplicate strings but I can't figure out add them in order as I go.

Here is my code for the Node.

package nodes;
 
public class Node {
 
 
 
	 private String data; // The data stored in this node private LinkedNode next; // 
 
	 private Node next; //The next node in the data structure
 
 
 
	 public Node () {
 
	 this ( null, null ) ;
 
	 }
 
 
 
	 public Node ( String newData, Node newNext ) {
 
	 data = newData;
 
	 next = newNext;
 
	 }
 
 
 
	 public String getData () {
 
	 return data;
 
	 }
 
 
 
	 public Node getNext () {
 
	 return next;
 
	 }
 
 
 
	 public void setData ( String newData ) {
 
	 data = newData;
 
	 }
 
 
 
	 public void setNext (Node newNext) {
 
	 next = newNext;
 
	 }
 
 
 
 
 
	} // LinkedNode

And the LinkedList

package nodes;
 
 
public class ListLL {
 
	protected Node top; // The first node in the list
 
	protected Node tail; // The last node in the list
 
	public ListLL() {
 
		top = null;
 
		tail = null;
 
	}
 
	public void addInorder(String s) {
		Node temp = new Node(s, null);
		Node current = top;
 
		if (top == null) {
			top = temp;
			return;
		}
		if (current.getData().equals(s)) {
			return;
		}
			while (current.getNext() != null) {
 
				current = current.getNext();
 
				if (current.getData().equals(s)) {
					return;
				}
			}
 
			temp.setNext(current.getNext());
			current.setNext(temp);
		}
 
 
 
 
	public void display() {
 
		Node temp = top;
 
		while (temp != null) {
 
			System.out.println(temp.getData());
 
			temp = temp.getNext();
 
		}
 
	}
 
	public void displayUseTail() {
 
		Node temp = top;
 
		while (temp != tail.getNext()) {
 
			System.out.println(temp.getData());
 
			temp = temp.getNext();
 
		}
 
	}
 
	public static void main(String[] args) {
 
		ListLL list = new ListLL();
 
		list.addInorder("banana");
 
		list.addInorder("banana");
 
		list.addInorder("orange");
 
		list.addInorder("pear");
 
		list.addInorder("apple");
 
		list.addInorder("grape");
 
		list.addInorder("grape");
 
		list.addInorder("pear");
 
		list.addInorder("grape");
 
		list.addInorder("banana");
 
		list.addInorder("berry");
 
		list.addInorder("strawberry");
 
		list.addInorder("melon");
 
		list.display();
 
		//list.displayUseTail();
 
	}
 
 
}

Thank you for your help!