URGENT!!!!

Given the following partial code, fill in the blank to complete the code necessary to insert node xafter the third node. (don't forget the semicolon)

... class Node { public Object data = null; public Node next = null; } ... Node head = new Node(); // first Node head.next = new Node(); // second Node head.next.next = new Node(); // third node Node x = new Node(); // node to insert _____________________ //

Given the following partial code, fill in the blank to complete the code necessary to remove last node. (don't forget the semicolon)

... class Node { public Object data = null; public Node next = null; } ... Node head = new Node(); // first Node head.next = new Node(); // second Node head.next.next = new Node(); // third node head.next.next.next = new Node(); // fourth node _____________________ //

Evaluate the following code to determine the output.

MyQueue q = new MyQueue(); q.add(17); q.add(63); q.add(77); System.out.println(q.remove());

Evaluate the following code to determine the output.

MyQueue q = new MyQueue(); q.add(14); q.add(12); q.add(10); System.out.println(q.remove() + q.remove());  

Evaluate the following code to determine the output.

MyStack s = new MyStack(); s.push(25); s.push(61); s.push(76); s.pop(); s.pop(); System.out.println(s.pop());

Evaluate the following code to determine the output.

MyStack s = new MyStack(); s.push(23); s.push(29); s.push(23); System.out.println(s.pop() + s.pop());