- Final exam solution
I have posted a key for the final exam, just in case you wanted
to find out how you did in the final. Final exam key in PDF format
- Grade clarifications I started to get many
emails about this, so I think I will post the grading policy
here. The distribution is the same as what is shown on the grades page. More details:
- The project grades are out of 50. Everybody in the project
received the same base grade, and it was weighted by the
evaluations. If you did not send in your evaluations, you
had a 10% penalty on your project points.
- The Exam grade is out of 40, but the curve made it out of
- Lab 1 and Lab 6a counted as bonus labs worth 1% and 2%
- lab 9a was added on to lab9. So if you received B in lab
9, and did very well in lab9a, your lab9 grades probably
improved to an A
- We took the top 8 out of 9 labs (not counting 1 and 6a,
which were added on separately) to figure your lab
- Grades posted
Okay - here is what you have been waiting for! Final grades have
been posted on post'em. Note that they are not on the gradesheet
yet. I submit final grades tomorrow (Friday) at 3PM. If you find
anything missing in your grade, contact me ASAP (that means
NOW), and have it clarified. If you miss the 3PM deadline, the
changed grade may not show up until later.
Class average: 80.2 (B-)
Median score: 85 (B)
Standard dev: 16.7
- Exam venues
Like the second mid-term, the class will be split into two for
the exam. People with last names starting from A-M should go to
Rawles Hall 100 (RH100) and people with last names from N-Z
should go to our regular lecture room (Swain West 119).
- Computer Science Evaluations The end of the
semester is always about evaluations - the computer science
department has its own method of electronic evaluations, and we
encourage all of you to send in your evaluations - especially if
you have any suggestions or comments about improving the class
in general. Using the CS evaluations, you can evaluate not only
the main instructor, but also the lab instructors. You can
simply return the message you received from cseval, or send in
the evaluations on-line. To send the evaluations on-line, please
go to the Grades page where you will
find links to the evaluations for individual AIs. Check your
section number and do the evaluations for the main instructor of
the lecture (i.e., me) and the main instructor of your
lab. Thank you!
- IUSA evaluations IUSA is going to organize a
student evaluation on Tuesday, 4/27/99 in class. Please come in
to the class on Tuesday to evaluate the course. I would really
encourage all of you to evaluate the course. This is my first
time teaching a course like A201. I tried a number of
different things in this course, and I would like to know what
you thought about them. Note that this is different from the
Computer Science evaluation system. You can do that on-line, and
you will receive an email regarding that shortly.
Team Member evaluations As part of the
project, you will need to evaluate your team members. To do
this, you will need to go to the grades
page and follow the link to the evaluations page. Note that
I do not have everybody's teams yet, so please read the
directions very carefully, and if anything is amiss, email me,
and do not evaluate your co-members until you hear from me.
- Project FAQ I have started a FAQ for projects.
- Project deliverable: Project deliverables have
been posted. See the projects page
Mid-term 2 solutions: Mid-term 2 solutions
have been posted. See the syllabus
page for details.
Assignment 8 solutions: Solutions for
assignment 8 has been posted in the Assignments page. Assignment 9
solutions will follow shortly.
- Lab 9 sample main program A sample main program
has been added to lab 9. You should make sure your programs work
with this main program.
Error in the main program Sigh. there was an
error in the main program that was posted this morning. It
should be fixed as of 8PM. If you downloaded it before that,
please download it again, or change line 19 to:
jillsAccount = new CheckingAccount("Jill", "121212", 250.00);
Sorry about that. Thanks to Jonathan Karn for pointing it out.
- Exams and other grades
Grades for Midterm 2, as well as lab 7 and lab 6 bonus have been
posted on Post'em. You will get back hard copies of your
assignments and the exam paper during this week's lab. Remember
that since the grades were calculated electronically, on the
paper copy you will only find the grades for the last two
questions. I will post a solution to the exam shortly.
Exam curve The average total score in the
exam was 27 (out of 40). As before, I have curved the exam to
bring 27 into a B level. So the exam is now graded as if it were
out of 35 and not 40. As usual, if you received more than 35,
then that will count as extra credit. 31 and above are A's, 27
and above are B's.
- Pre-exam ponderances:
Since we are going pretty much full multiple-choice, quizzes
6-8 would be treated as practice exam questions. Make sure you
try all the quizzes and understand the answers.
Assignment solutions: Candidate solutions to
labs 6, 6a and 7 have been posted. Note that these are not very
heavily tested, but they are basic solutions to the problems.
- Exam venues
We are splitting the exam! See the syllabus page under mid-term 2 for more
- Iguess solution problem
solution posted on the solutions has an error. After making a
guess, it puts it back in the pile for guessing by setting it to
either max or min. The max or min should be set to the next
number accordingly. It is now updated with the right answer.
- Lab 5 grades and solutions I have posted the
grades for lab5 on postem. Solutions of lab5 are also up
now. Please check your grades and let me know if there are any
inconsistencies as soon as possible.
- Clarification on second project milestone You
will get your proposals back during labs this week. In your
proposals, if you see a comment saying "rewrite" or "redo", then
you will need to rewrite your proposal based on what you were
supposed to do. Most likely you did not have adequate details
for us to understand what the project would be. You will need to
turn this in the next lab, otherwise you will get penalized in
the project. For others, there are no deliverables this week.
- Out of office I will be out of office this
Wed through Saturday (3/10 through 3/13). So I will not be there
for my office hours this week. However, I will be accessible by
email, and I will be here during Spring Break, so if you have
any questions, please email me or make an appointment to see me
over the break.
Classes this week Since I will be gone this
Thursday, the lecture on Thursday is cancelled. Labs meet as
usual, but we decided to only have a short extension to lab6 for
the next lab which will count towards bonus on lab6. Details
will be posted in the assignment page by tonight. Labs will meet
Lab and project extensionI am granting a
two-day extension for lab6 (without the bonus part) and project
proposal until this Friday (3/12/99).
Details on project submission You should hand
in your project proposal in hard copy in the lab. Only one
submission per team. Make sure the names of all the team members
are on your proposal. The proposal must be word-processed.
- Lab 4 solutions posted Lab4 solutions are up
now. They are somewhat my solutions - may or may not be the best
- Typo in Lab 5 - there were a typo (actually
more a mistake) in lab 5 - you can guess the number in 4 tries
only if the number is between 1 and 15, not 16 as was posted in
the lab. Also, if you printed it the night before, there was a
part of lab 4 that got pasted in lab 5, which has also been
corrected. Please take a fresh printout if you want to make
Sorry about any inconveniences.
- Changes in assignment/exam: as announced in class,
lab 4 is now due on Thursday midnight, but you may need to make
special arrangements to get help, since there are no office hours on
Thursday. Also, the exam full points is now 40, so if you received
32 or higher, you are in the B level.
- Sigh. I will be out again. But this time I am
making it a point not miss the lecture. I will miss my office
hours this wednesday though. To make up, I will have special
office hours after class (2:30-4PM on Tuesday). Sorry about any
There was no quiz this week! I will have one up
by tomorrow, which willb e due next Tuesday (3/2/99).
- Exam grades posted! I have posted the exam
grades on postem. Please verify that you have your grades on
there, if you have taken the exam. The highest was 47, and the
average was 34.3 (out of 50). Usually I curve the exam by
bringing the max down. In this case, I will most likely bring
the max down to 45, so that your points would actually be
counted as if it were out of 45. So if you received a 30, your
curved grade would be 67 instead of a 60.
The midterm was only 10% of the points. If you did not do so
well, don't worry, there will be lots of opportunities to make
up for some slack, but you have to work hard starting
- Quiz extension: The quiz 3 deadline is extended
until 4PM tomorrow (wednesday 2/17/99) which means you will not
be able to see the solution key until then. I wanted to make
sure that you see the quiz solutions before you go to the exam,
but since a number of you have been asking for an extension, and
since it wasn't covered in much detail in class, I have made an
extension. Question 1 has the same readLine - readWord problem,
so assume that the name is read using readWord(). Sigh. And one
thought Java was really platform-independent....
Midterm is open book! I announced this in
class, but this is for those of you who missed it. You can bring
a calculator to the test (although you will not need one), and
definitely bring an ID. Use of laptop computers, is, however,
Back! Okay, I am back, so expect to receive
replies of your messages (slowly) as I go through them.
- Piglatin rules! Looks like I myself as well as
some of the AIs were confused about the rules that govern
Piglatin. The rules from an expert is now part of the
assignment. Please check the rules in the Lab 4 page
I will be out! I will be out of town this
weekend until Tuesday morning. During this time, if you email
me, you may not recieve a response until after Tuesday. You may
want to post your question on the WizeUp Forum or
email them to your AI.
- Cafe 3.0 instructions! I finally got Cafe 3.0
Standard edition installed in my machine. On playing with it, I
did see the justification of using Cafe 1.8 because of its
simplicity (3.0 is much harder to use), but there are lots of
very nice features in 3.0 that make it quit eattractive,
especially for the $35 price for the standard edition. I have
posted a set of instructions on the WizeUp Forum
"Assignment Help". Please check it out if you are using Cafe 3.0.
Midterm Sample questions posted You will find a
set of sample questions that will
be similar to the larger
questions in the class. Note that each part of the sample
question will be like one question in the exam. Exam questions
will not have parts. The solutions to these sample questions are
available from the Syllabus page,
but it is strongly recommended that you try the questions
yourself without looking at the solutions first.
- Bring those printouts! Because of the large
number of students in this class, there may be a number of
people waiting for the office hours. Most of us can usually look
at some code and immediately figure out what the problem is,
making it easier and less time consuming for you and the others
waiting. So when you come to office hours, please bring
printouts of your latest code and write down any error message
that you need to fix.
- I have started a tutor list. If you are in need for tutors,
please check the new Tutors page. A
permanent link is in the resources page.
- Lab 2 solutions posted! Please check the Assignments page for the solutions.
- Lab 3 FAQ already! We have already started getting
questions on lab 3, so I decided to put a FAQ for lab 3 right away.
We will be updating the FAQ pretty regularly, so keep checking it.
The FAQ is in its regular place in the Assignments page.
- Lab 1 solutions posted! See the assignments page to see the Lab 1 solutions.
Expect lab 2 solutions by this weekend.
Slowing down the class! Since the number of topics we
cover in this class is not that overwhelming, I have decided to slow
down a little and take a little more time with strings. So the
syllabus page has changed somewhat, and will continue changing as I
work out how slow I will go. But for now, we will skip applets until
after the midterm, and stay with strings and go to decisions next
- Online discussion forum! I am testing out an online
discussion forum for the class from WizeUp.com, the provider of the
electronic version of the course textbook. I have tentatively
created two discussion forums, and will use it for a while to see
how it works. Please check it out!
To use this discussion forum, go to The WizeUp Discussion
groups. This will ask you for a username and password. To obtain
one, you need to register using the registration link on this page.
When you register, you will be asked for a "Professor Code", enter
the word "Jit" with the exact capitalization as shown here.
Once you register and get in the site, click on Computing
Concepts with JAVA essentials (the second book in that list), and
then click on my name among the list of professors.
I have added the link to the resources
page under A201 specifics.
- We have two pieces of good news for those of you who want to
work from home!
You can get J++ 1.1 to work, simply by downloading the classes.zip file from JDK 1.1 and
putting it in any directory and adding that directory to the
project's classpath. There may be a simpler way, but I am looking
into it. Suppose you download the above file into your C:\
directory. Then to change the classpath, use Project - Settings, and
in the class path directories, type in the following:
Now you can compile and run your programs as usual.
You can also get the Symantec Visual Cafe, standard edition from
TIS for about $38 - from what I heard. Although I haven't used it
myself, I am told that it works fine for our A201 programs.
- FAQ for Lab 2 is now up! Check it out. There is a link to it from the
Assignments page under Lab 2.
- We have started a FAQ section! Every assignment
will have a linked to
a set of frequently asked questions. See the Assignments page for the FAQ links.
Before asking a question, please make sure the question is not in
Class notes will be available before class! On
popular demands from students, I will make class notes available at
least one hour before class so that you can print it out before
coming to class. I recommend printing the notes with 3 slides per
page with notes area (Use handouts: 3 slides per page mode) to save
paper. Use duplex printers whenever possible.
- QUIZZES HAVE STARTED!. Quizzes will be given every
Tuesday and will be due by midnight the next Tuesday. You can take a
quiz as many times as you want, make sure you get all the questions
right, since the feedback from the quizzes will tell you your score
and mark the incorrect answers. Make sure you try to understand the
answers to the quiz questions!
To log into Quizsite, follow the link to Quizsite Students from
the BEST Home page.
- I have received a lot of questions on what software to use if you
want to work at home. You can use pretty much anything you want, but
make sure you can edit the code by hand in any software you use, and
only use the packages provided in the lab. Do not use any visual
drag-and-drop features that are available in some software. Here are
a few choices:
- Changes in office hours! Please see for the new office hours
- You need a floppy!Since the lockers can't store
files with mixed cases, you need to use a floppy disk to store your
assignments. Its probably to buy a box of floppies - these will be
for your use only - you do not need to submit floppies for any of
- Don't use Internet Explorer for submission!
Apparently by default IE sends messages in HTML, and thus totally
confuses the handin program.
- A free version of the digital text of the Horstman book is available at
Called the "FREE Drop/Add Test-Drive," it gives
students chapters 1, 2 and 3.
The complete digital textbook costs about 20-25% less than the
printed book, and can be purchased at http://www.wizeup.com
We will use an online discussion group provided by this site soon
for communication purposes of this class. Watch this space for more
- There was a problem with the assignment handin program. The problem
was detected around 11:30 AM, and was fixed by about 4:30 PM. Any
submissions between these times were most likely ignored. However,
since these were primarily the test submissions for the in-lab
exercise, do not worry, since the in-lab submissions were mainly for
testing out the system. Make sure your lab0 submission properly goes
through, however (i.e., you receive a response saying it was
- Please make sure you have a valid network ID and network password
before you go to this week's labs. You will need the network ID and
password to get into the public computing clusters.