public E previous() {
if (current.getPrevious() == null) {
return null;
}
current = current.getPrevious();
return current.getData();
}
public E next() {
if (current.getNext() == null) {
return null;
}
previous = current;
current = current.getNext();
return current.getData();
}
private void loop(E data) {
current = first;
while (current.getData() != data) {
current = current.getNext();
if (current == null) {
return;
}
}
}
/**
* Method goes to the end of LinkedList
*
* @return last element of Linked List
*/
public E getLast() {
if (last == null) {
while (current.getNext() != null) {
current = current.getNext();
}
last = current;
}
current = last;
return last.getData();
}
/**
* Method goes to begin of LinkedList
*
* @return first element of Linked List
*/
public E getFirst() {
current = first;
return current.getData();
}
public E get() {
return current.getData();
}
