Java lists

[shadylookin]

I have 2 lists linkedlist and linkedlist2. I want to be able to take out the first Card out of linkedlist (which starts at 0) and add it to linkedlist2. then once that is done i want to remove Card 0 from linkedlist. and i want to be able to do this for as many times as i assign to the integer n.



public Deck split(int n) {
//implement
LinkedList<Card> linkedlist= new LinkedList<Card>();
LinkedList<Card> linkedlist2= new LinkedList<Card>();

int i = n;

while (i > 0){
linkedlist2.add(linklist<0>);
linkedlist.remove(0);

i--;}



however the part that i bolded doesn't work so how do i do it?

[Roelf]

shouldnt the line be:
linkedlist2.add(linkedlist.get(i));
linkedlist.remove(i);

[Gox]

shouldnt the line be:
linkedlist2.add(linkedlist.get(i));
linkedlist.remove(i);
I'm not sure on the implementation of a linkedlist in java but I'm not sure this will achieve what he's after. the variable i will be some number between n and 0. Thus, if we remove(i) we'll not be removing the first card (index 0), but whatever card is at the index equal to i (which will range from n,..., 3,2,1).

Based on looking at his code, I'm guessing the error is a syntax error. In which case, I'd try changing the line

linkedlist2.add(linklist<0>);
TO
linkedlist2.add(linklist.get(0));
OR
linkedlist2.add(linklist.getFirst());

[Aradon]

Gox is right:


public Deck split(int n) {
//implement
LinkedList<Card> linkedlist= new LinkedList<Card>();
LinkedList<Card> linkedlist2= new LinkedList<Card>();

int i = n;

while (i > 0){
linkedlist2.add(linkedlist.get(0));
linkedlist.remove(0);

i--;
}


You could also change it to

linkedlist2.add(linkedlist.poll());


There are a whole bunch of different ways to do it so I suggest looking at the API:
LinkedList (http://java.sun.com/j2se/1.5.0/docs/api/java/util/LinkedList.html)