Stips Question

public static Node<Integer> isZogit(Node<Integer> L)
{
	int firstSeq=0, tempSeq = 0;
	Node<Integer> first = L;
	Node<Integer> newLst,firstNewLst;
	if(first.getInfo()%2!=0)
		return null;
	while(L.getInfo()%2==0)
	{
		firstSeq++;
		L = L.getNext();
	}
	newLst = new Node<Integer>(L.getInfo());
	L=L.getNext();
	firstNewLst = newLst;
	while(L!=null)
	{
		while(L!=null&&L.getInfo()%2==0)
		{
			tempSeq++;
			L=L.getNext();
		}
		if(tempSeq!=firstSeq&&tempSeq>0) {
			return null;
		}
		tempSeq = 0;
		newLst.setNext(new Node<Integer>(L.getInfo()));
		newLst = newLst.getNext();
		L = L.getNext();
	}
	return firstNewLst;
	
}