FINAL CIS 35b Answer all eight
questions. Each question is worth 10 points.Q1 Ques 1 – 10 pointsConsider the following
code: public class mySet { ArrayList myElements = new
ArrayList( ); public boolean add( Object o ) {
myElements.add( o ); } public Object remove( ) { if
(myElements.isEmpty( ) == false) return myElements.remove( 0
); // removes & returns object at position 0 return null; } } - What may happen if an object of the class
mySet is used by multiple threads calling add( ) and remove( ) at the
same time?
- Change the add( ) and
remove( ) methods so that the class mySet can be safely used by multiple
threads at once.
- Change the add( ) and
remove( ) methods so that the method remove( ) will always return an
object when used by multiple threads (by waiting until an object has
been added).
Q2 How do you
transfer input from a form to a JavaBean Variable? Explain your answer
and write a short code snippet to demonstrate the concept. Q3 Write a code snippet that shows the following: Create a
socket and attach an input and output stream to it. Write a function
that can check to see if the socket connection is broken. Q4. Explain how the hidden text fields can be used with
Java? Q5. What is the role of response variable in JSP? Why is
thread safety important in JSP and how it is achieved? Q6 How do interfaces exhibit Polymorphism? Explain your
answer with an example. Q7. Explain in depth
how an http request is processed, clearly identifying the role of
webserver and JVM Engine (Tomcat for example) Q8. Can a serialized object be transferred over a network?
Write a code snippet to show how this might be achieved | 
