2) Given that the Stack and Queue classes have been implemented correctly, what is the output of the following? s = Stack() q = Queue() s.push(3) q.enqueue(4) q.enqueue (6) q.enqueue(s.pop()+2) s.push(q.dequeue()+5) q.enqueue(s.pop()-1) print(q.dequeue().q.dequeue().q.dequeue())

8. Assume you have a queue q that has already been populated with data. What does the following code fragment do to the queue q? Stack s = new Stack(); while (!q.isEmpty()) s.push(q.dequeue () ); while (!ss.isEmpty()) q.enqueue (s.pop());

Choose a system of your own choice, evaluate it, and identify the limitations in terms of meeting the various users’ needs. Perform a PACT Analysis to identify the various group of people who could use the system, then resign the chosen interface to meet the needs of all these class of people you identify. Thus, you are presenting the old interface and your own designed interface. With a written document of improvements, you introduced.

Write a method to reverse the content of a stack. Inside the method, you may create exactly one temporary container -- either a stack or a queue.  It is alright to create variables of primitive data types (such as, an integer), if required. You must use the following header. public void reverse(Stack s){