IN JAVA PLEASE AS SSON AS POSSIBLE

NUMBER 1

Implement an algorithm to find the nth to the last element of a single linked list.

If the list is:

8->10->5->3->2->1->5->4->10->10

then the result is 7th to last node is 3.

public static LinkedListNode nthToLast(LinkedListNode head, int nth)

{

//todo

}

NUMBER 2

Complete the method below, which should return a new stack containing the playing cards in the given stack in the same order, with all aces removed. If the s.getRank() method equals 1, then the card is an Ace.

public static Stack removeAces(Stack s)

{

//todo

}

NUMBER 3

A singly linked list of integers has a dummy head node, followed by a node with 8, followed by a node with 9, followed by a node with 1, and a final node with 3.

h->8->9->1->3

a) What does the following code fragment output for the list above? What does it output in general? What must be true about this list to avoid a runtime error?

Node p = head;

while (p.next != null) {

p = p.next;

}

System.out.println(p.data);

b) The following code outputs the sum of all of the values in the linked list. Explain the unintended side effect that occurs when this code is run. Then rewrite the code to avoid this side effect.

int s = 0;

while (head != null) {

s += head.data;

head = head.next;

}

System.out.println(s);