List only appends one item

[pyler]

Node inside a linkedlist
SomeInterface has an

addLast()

method that should add a node at the end of the list

public sizeCount=0;
public LinkedList<T> implements SomeInterface<T>{protected class Node<T>{
		privateT data;
		private Node<T> head,tail;
		protected Node(T data,Node<T>tail){
			this.data=data;head=null;this.tail=tail;}
		private T getInfo(){return this.data;}
		private void setTail(Node<T>newTail){this.tail=newTail;}
		private void setLink(Node<T>newHead){this.head=newHead;}
		private Node<T> getLink(){return tail;}
		}}
public void addLast(){

}
}//end of LinkedList<T> class

when I create a LinkedList object (

LinkedList<String>somelist=new LinkedList<T>()

) and try to append multiple items (

somelist.append("William");somelist.append("Fredkrick");somelist.append("Maria")

) only the last item/string gets appended to the list. Any reason why?

Also, here's the

append()

method

Node<E>topNode=null;
append(E thing){
if(thing==null){throw new InvalidInputException();}
else{
    if(topNode==null){
        topNode=new Node<E>(thing,null);
        sizeCount++;return this;}
    if(topNode.tail==null){topNode.tail=new Node<E>(thing,null);return this;}
    else{topNode=topNode.tail;append(thing);return this;}
        }
       }

[Norm]

Please edit your post and wrap your code with code tags:
[code]
YOUR CODE HERE
[/code]
to get highlighting and preserve formatting.

Also the code needs to reformatted. There should only be one statement per line.
There should not be code on the same line as a }