1. Daily announcements CS 101 Fall 2006 Aaron Bloomfield

2. 2 Monday, 28 August 2006 Today’s music: Doobie Brothers Textbook update It’ll be here soon! See the webpage also Lab scheduling issues New lab section at 2 p.m. on Thursday Course schedule number 602X4 Those who can’t fit that time will be course actioned into a section that works This will happen on Wednesday You’ll get an e-mail about it Fill out the scheduling survey if you are having lab scheduling problems! All the office hours are on the website Lab 2 is this Thursday (we’ll be going over it Wed) HW J1 will be out a week from Wed

3. 3 Wednesday, 30 August 2006 Today’s music: Alice in Chains Textbook update (and clickers) It’ll be here soon! See the webpage also Lab scheduling issues New lab section at 2 p.m. on Thursday Course schedule number 602X4 Those who can’t fit that time will be course actioned into a section that works This will happen later today or tomorrow You’ll get an e-mail about it All the office hours are on the website I won’t have mine tomorrow Lab 2 is this Thursday (we’ll be going over it today) HW J1 will be out a week from today

4. 4 Monday, 4 September 2006 Today’s music: U2 Textbook update (and clickers) Both of them will be here soon! A PDF version of the textbook is available on the website Lab scheduling issues Everybody should be in a lab that fits their schedule now If not, please see me All the office hours are on the website Lab 3 is this Thursday (we’ll be going over it on Wed) HW J1 will be out this Wednesday

5. 5 Wednesday, 6 September 2006 Today’s music: The Who Textbook update (and clickers) Clickers are in the bookstore Textbooks should be there this week A PDF version of the textbook is available on the website How many were able to download it? Lab scheduling issues Everybody should be in a lab that fits their schedule now If not, please see me All the office hours are on the website Mine will begin at 2:30 this Thursday (instead of 2) Lab 3 is this Thursday (we’ll be going over it today) HW J1 will be out later today We’ll go over it today as well

6. 6 Monday, 11 September 2006 Today’s music: Sarah McLachlan Textbook update (and clickers) Clickers are in the bookstore Textbooks should be there this week Sound familiar? A PDF version of the textbook is available on the website Let me know if you can’t download it My office hours will begin at 2:30 this Thursday (instead of 2) Lab 4 is this Thursday (we’ll be going over it Wednesday) Homeworks HW J1 is due on Friday at 10 a.m. HW J2 will be out on Wednesday We’ll go over it then HW C1 will be out shortly Will demo it today 101 students should use access code: VIRGIN-4241-2241 First midterm is 2 weeks from this Wednesday And the lab quiz is that Thursday or Friday in lab

7. 7 Wednesday, 13 September 2006 Today’s music: Queen Textbooks are here! Really! And you don’t have to return yours, if you purchased it already Prices: Book is $104 (with clicker license) Clicker is $20 CodeLab license is free Can also get clicker license separately for $8 My office hours will begin at 2:30 this Thursday (instead of 2) Assignments HW J1 is due on Friday at 10 a.m. HW J2 will be out today or tomorrow We’ll go over it today HW C1 is out, due Monday, 25 Sep at 10 a.m. 101 students should use access code: VIRGIN-4241-2241 Lab 4 is this Thursday (we’ll be going over it today) First midterm is 2 weeks from this today And the lab quiz is that Thursday or Friday in lab

8. 8 Monday, 18 September 2006 Today’s music: Metallica Textbooks are here! You don’t have to return yours, if you purchased it already Prices: Book is $104 (with clicker license) Clicker is $20 CodeLab license is free Can also get clicker license separately for $8 More clicker info will follow on Wednesday Assignments HW J2 is due on Friday at 10 a.m. No J3 HW this week Because of the midterm next week HW C1 is out, due Monday, 25 Sep at 10 a.m. 101 students should use access code: VIRGIN-4241-2241 Lab 5 is this Thursday (we’ll be going over it Wednesday) First midterm is 1 week from this Wednesday And the lab quiz is that Thursday or Friday in lab

9. 9 Monday, 18 September 2006

10. 10 Wednesday, 20 September 2006 Today’s music: Enya Textbooks are here! You don’t have to return yours, if you purchased it already Prices: Book is $104 (with clicker license) Clicker is $20 CodeLab license is free Can also get clicker license separately for $8 More clicker info will follow on Wednesday Assignments HW J2 is due on Friday at 10 a.m. No J3 HW this week Because of the midterm next week It’ll be out next Monday HW C1 is out, due Monday, 25 Sep at 10 a.m. 101 students should use access code: VIRGIN-4241-2241 Lab 5 is this Thursday (we’ll be going over it today) First midterm is 1 week from today And the lab quiz is that Thursday or Friday in lab The test is NOT open textbook, but the lab quiz is

11. 11 Monday, 25 September 2006 Today’s music: The Coors Textbooks are here Clicker info will follow right after the exam (i.e. next Monday) Assignments Reflections on HW J2 HW J3 will be out later this week, due next Friday Will go over it today, but a bit later in the lecture HW C1 is out, due tomorrow at 10 a.m. Will go over the questions about it today No lab this week, as there is a lab quiz during that time All TA office hours cancelled this week after the exam They will resume at 7 p.m. on Sunday Course project Battleship vs. image manipulation program? Exams this week First midterm is this Wednesday in lecture It is NOT open book Exam taking procedure Lab quiz is during your normal lab section It IS open book (not open notes, not open neighbor, not open past assignments) Both are on chapters 1, 2, 3, and 5 The focus will be on chapters 2 and 3 The exams page on the website has past exams to look over Grading: will try to have the grades back by next Monday Review session is tomorrow (Tuesday) from 7-9 Bring questions to ask! Room is Olsson 009

12. 12 HW C1 question 20583 Assume there is a class AirConditioner that supports the following behaviors: turning the air conditioner on and off. The following methods provide these behaviors: turnOn and turnOff. Both methods accept no arguments and return no value. Assume there is a reference variable officeAC of type AirConditioner. Create a new object of type AirConditioner and save the reference in officeAC. After that, turn the air conditioner on using the reference to the new object. Instructor's notes: First, assign to the requested air conditioner a new default-constructed air conditioner. Then, signal that air conditioner to perform the turnOn behavior

13. 13 HW C1 question 20583 There has already been a officeAC reference created: AirConditioner officeAC; Note that it has not been initialized – it doesn’t point to an object! Your job is to make that reference point to an object officeAC = new AirConditioner(); And then call the turnOn() method officeAC.turnOn();

14. 14 Homework survey graph

15. 15 Wednesday, 27 September 2006 Music today: Queensryche Test today! Is is NOT open textbook When you are finished, please bring it up and put it in the correct pile by sections If you are writing when I say “pens down”, you will get a zero Lab quiz tomorrow and Friday during lab section You can not ask the TAs for help, unless it is a computer issue (i.e. they can’t debug Java for you) It IS open textbook HW J3 will be out by this Friday morning

16. 16 Monday, 2 October 2006 Music today: Led Zeppelin Tests Average was 79.8 (101 was 79.4, 101-E was 81.9) Scores are on the website Will be returned in lab section this week If you are considering dropping the course, you may pick it up during my office hours Lab quiz will be back in a few days Next midterm is 3 weeks from this upcoming Wednesday (25 Oct) We’ll go over the exam briefly today Upcoming assignments HW C2 will be out “soon” HW J3 is out, due this Friday HW J4 will be out Friday, will be going over it Wednesday Lab 6 is this Thursday/Friday, and is on while loops Student response system (clickers) Use class key: H24043A592 Full instructions will be on the website shortly And I’ll go over it on Wednesday

17. 17 Wednesday, 4 October 2006 Music today: Led Zeppelin Tests Midterm average was 79.8 (101 was 79.4, 101-E was 81.9) Scores are on the website Will be returned in lab section this week Lab quiz will be back in a day or two Next midterm is 3 weeks from today (25 Oct) We’ll go over the exam briefly on Monday (as people will have the exam back then) Upcoming assignments HW C2 will be out “soon” HW J3 is out, due this Friday HW J4 will be out Friday, will be going over it today Lab 6 is this Thursday/Friday, and is on while loops – will go over it today Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website – will go over it today Everybody needs to get one!

18. 18 Wednesday, 11 October 2006 Upcoming assignments HW C2 will be out “soon” HW J4 is out, due this Friday HW J5 will be out Friday, will (hopefully) be going over it today Lab 7 is this Thursday/Friday, and is on for loops Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one! Will start using them on Monday Music today: ABBA Regrade issues HW J3 – we took off for bad variable names Please submit an online regrade Exam 1 – we took off for the ‘String s = ‘s’;’ question (4b) Sorry! Our bad Please fill out a regrade form (in lab or lecture) See next bullet for more details Other exam 1 regrades Grading guidelines are on the exams page of the website Fill out the regrade form (on the exams page of the website) Attach them together! Then turn them into me or a TA We will (hopefully) go over the exam briefly today I have uncollected exams with me (get them after lecture)

19. 19 HW J3 survey results graph

20. 20 Monday, 16 October 2006 Music today: Styx Tests Midterm 2 is one week from this Wednesday Is cumulative Will focus on chapters 5 (decisions), 6 (iteration), and some of chapter 4 (classes) And a lab quiz that Thurs/Fri in lab Assignments HW J4 reflection HW J5 is out, due this Friday Lab 8 is this Thursday/Friday, on creating classes HW J6 will not be out this week (as there is a test next week) HW C2 will be out “soon”, due shortly before the test Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website – will start using it today Everybody needs to get one! Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way

21. 21 Monday, 16 October 2006

22. 22 What is your favorite number? a) 1 b) e c)  d)  e) I don’t like numbers

23. 23 Wednesday, 18 October 2006 Music today: ??? Tests Midterm 2 is one week from today It is cumulative Will focus on chapters 5 (decisions), 6 (iteration), and some of chapter 4 (classes) And a lab quiz that Thurs/Fri in lab Assignments HW J5 is out, due this Friday Lab 8 is this Thursday/Friday, on creating classes HW J6 will not be out this week (as there is a test next week) HW C2 will be out “soon”, due shortly before the test Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Game (& JPJ show) this Thursday There will be lab If you want to do a make-up lab, that’s fine – just e-mail a request to cs101@cs.virginia.edu Homework still due Friday @ 10 I will not have office hours this Thursday Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website – will start using it today Everybody needs to get one!

24. 24 Wednesday, 18 October 2006 Music today: Eagles Tests Midterm 2 is one week from today It is cumulative Will focus on chapters 5 (decisions), 6 (iteration), and some of chapter 4 (classes) There will be a review session on Monday evening And a lab quiz that Thurs/Fri in lab The final exam will be optional Assignments HW J5 is out, due this Friday HW C2 is out, due next Tuesday at 2 p.m. CodeLab questions from chapters 5 and 6 Lab 8 is this Thursday/Friday, on creating classes HW J6 will not be out this week (as there is a test next week) Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Game (& JPJ show) this Thursday There will be lab! If you want to do a make-up lab, that’s fine – just e-mail a request to cs101@cs.virginia.edu Homework still due Friday @ 10 I will not have office hours this Thursday Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

25. 25 Monday, 23 October 2006 Music today: Indigo Girls Tests Midterm 2 is this Wednesday It is cumulative Will focus on chapters 5 (decisions), 6 (iteration), and some of chapter 4 (classes) There will be a review tonight at 8 p.m. in Olsson 009 And a lab quiz this Thurs/Fri in lab The final exam will be optional Review session tonight at 8 Assignments HW C2 is out, due this Tuesday (tomorrow!) at 2 p.m. CodeLab questions from chapters 5 and 6 Lab 8 is this Thursday/Friday, on creating classes HW J6 will not be out later this week, due a week from Friday “Vagueness” of assignments Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

26. 26 HW J5 results graph

27. 27 Wednesday, 25 October 2006 Please sit every other seat! All office hours will be cancelled after the exam (will resume next Sunday at 4) HW J6 will not be out later this week, due a week from Friday Lab quiz this Thu/Fri in labs It is open textbook! Asking questions during the exam… Put pens down when it’s called! And please put your exams in the right pile

28. 28 Monday, 30 October 2006 Music today: U2 Tests Midterm 2 was returned in lab last week I have the remaining ones with me today Average was 77.4, standard deviation 14.4 Will go over it today Grading guidelines are on the exams page Assignments HW J6 is out, due this Friday at 10 a.m. About the late release of the homework Will go over it today as well Lab 9 is this Thursday/Friday, on creating classes “Vagueness” of assignments Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

29. 29 Wednesday, 1 November 2006 Music today: Tool Tests Midterm 2: 5 point curve for everybody to handle poorly worded questions Grading guidelines are on the exams page Regrades will be accepted all of this week and next week Assignments HW J6 is out Due Monday by 10 a.m. But you get 5 extra credit points (on the HW) if you turn it in by Friday at 10 a.m. Will review a bit of HW J6 on the next slide Don’t wait until the last moment! We only have a limited number of TAs! Lab 9 is this Thursday/Friday, on arrays Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

30. 30 Board (0,0) (7,7) - length = 2 - name - int xPosition = 0 - int yPosition = 0 - int hits = 1 - boolean isHorizontal = false + … Ship b - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = false + … Cell - ship - isHit = false + … Cell - length = 3 - name - int xPosition = 4 - int yPosition = 7 - int hits = 1 - boolean isHorizontal = true + … Ship “canoe" “rowboat"

31. 31 Monday, 6 November 2006 Music today: Annie Lennox Grading Am all caught up with grading HW J5, quiz 2, and lab 8 returned this weekend Exam 1 test regrades processed, and gradebook updated Still have a few regrades, but am moving through those quite well Assignments HW J7 is out Due Friday by 10 a.m. Will talk about it a bit today Don’t wait until the last moment! We only have a limited number of TAs! Lab 10 is this Thursday/Friday, on creating classes TA office hours (and general shortage of TAs) Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

32. 32 Recount day 1 Music today: Pink Floyd Grading Am all caught up with grading Exam 1 test regrades processed, and gradebook updated Exam 2 bonus not added in yet Still have a few regrades, but am moving through those quite well Assignments HW J7 is out Due Friday by 10 a.m. Don’t wait until the last moment! We only have a limited number of TAs! HW J8 will be out this Friday Will talk about it a bit today Lab 10 is this Thursday/Friday, on creating classes TA office hours (and general shortage of TAs) Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Use class key: H24043A592 Don’t use your SSN for the StudentID field! Full instructions are on the website Everybody needs to get one!

33. 33 HW J6 graph

34. 34 Monday, 13 November 2006 Music today: The Commodores Grading Plan is to have HW J6, lab 9, and lab 10 back before break (i.e. Thurs evening) Hope to have HW J7, HW J8, and lab 11 back after break (i.e. Mon morning) Exam 2 bonus not added in yet Still have a few regrades, but am moving through those quite well Assignments HW J8 is out Due Friday by 10 a.m. The workload has been reduced due to the late release date Will talk about it today Don’t wait until the last moment! We only have a limited number of TAs! Lab 11 is this Thursday/Friday, on 2-D arrays Exams 3 rd midterm is the Wednesday we get back from Thanksgiving break Final is Thursday, Dec 14, and is optional TA office hours (and general shortage of TAs) Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Full instructions are on the website Everybody needs to get one!

35. 35 Wednesday, 15 November 2006 Music today: Simon & Garfunkel Grading Plan is to have HW J6, lab 9, and lab 10 back before break (i.e. Thurs evening) Hope to have HW J7, HW J8, and lab 11 back after break (i.e. Mon morning) Exam 2 bonus not added in yet Still have a few regrades, but am moving through those quite well Assignments HW J8 is out Due Friday by 10 a.m. The workload has been reduced due to the late release date Will talk about it today Don’t wait until the last moment! We only have a limited number of TAs! Lab 11 is this Thursday/Friday, on 2-D arrays Exams 3 rd midterm is the Wednesday we get back from Thanksgiving break Final is Thursday, Dec 14, and is optional TA office hours (and general shortage of TAs) No office hours over break! Whom to contact Please start using use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way Student response system (clickers) Full instructions are on the website Everybody needs to get one!

36. 36 Board’s setupBoard() method public Board setupBoard(int x, int y) { Board board = new Board(x, y); board.generateRandomBoard (Game.DEFAULT_NUMBER_OF_SHIPS); return board; }

37. 37 HW J7 graph

38. 38 Monday, 27 November 2006 Music today: Meat Loaf Grading We’re a bit behind, but are working on catching up Exam 2 bonus has been added in Still have a few regrades, but am moving through those quite well Assignments HW J9 will be out very soon (probably tomorrow) Due Tuesday by 10 a.m. Can turn it in up to 24 hours late with no penalty Lab 12 is a do-at-home lab And deals with course surveys No HW C3 Exams 3 rd midterm is this Wednesday Review session tonight at 8 p.m. in Olsson 005 Bring questions to ask! Lab quiz this Thursday/Friday Both exam and lab quiz are cumulative Focus is on chapters 4 (classes) and 8 (arrays) And chapter 7 (which we have covered most of) Final is Thursday, Dec 14, from 7 p.m. to 10 p.m., and is optional Any make-ups must be AFTER the exam date Whom to contact Please start use use cs101@cs.virginia.edu instead of me You’ll get a quicker response that way

39. 39 HW J8 graph

40. 40 HW J8 graph, the other one

41. 41 Wednesday, 29 November 2006 Office hours this week Will not be any tonight But will (generally) have them for the rest of the week Check online to be sure (I may have to cancel mine) Lab quiz tomorrow/Friday It’s open text book Assignments No HW C3 HW J9 is out, as is lab 12 Final is Thursday, Dec 14, from 7 p.m. to 10 p.m., and is optional Any make-ups must be AFTER the exam date

42. 42 CS 101: The End Today’s music: Pink Floyd HW J9 Due tomorrow (or Wednesday) by 10 a.m. Will chat about it in a bit Grades Quiz 3 and HW J9 should be returned by next Monday Regrade window will be 2 days No whiny regrade requests! Or else we may lower your grade! Lab 12 will be returned by then as well If you did it, you get 4 points If you didn’t, see me after class HW C1 and C2 grades will be up there “soon” Clicker bonus will not be reflected in the online numerical grades Your letter grade will be modified if it applies Office hours All TA office hours will end at the end of the day on Tuesday (tomorrow) My office hours will be posted on the website They will probably change during finals week E-mail replies from me after the semester ends will be very slow Like in January Exam 3 Average was 81.5, stdev 16.2 I have them with me today Regrades due by the end of this week! Can drop them off at my office Grading guidelines are available online Final is Thursday, Dec 14, from 7 p.m. to 10 p.m., and is optional Any make-ups must be AFTER the exam date Please don’t take it! I don’t want to have to grade it!

43. 43 Grade ranges Each letter grade is a 10-point range 60-70 is a D, 90-100 is an A, etc. The lower 3 points of this range is the minus grade (A-, B-, etc.) The middle 4 points is the grade itself (A, B, etc.) The upper 3 points is the plus grade (A+, B+, etc.) The only difference is the A+ range We’re still working on that Note that a 89.4999999999999 is an B+, no matter how many times you ask Grade ranges: A+: 97.5 -> 100.0 Subject to change! A: 92.5 -> 97.5 A-: 89.5 -> 92.5 B+: 86.5 -> 89.5 B: 82.5 -> 86.5 B-: 79.5 -> 82.5 C+: 76.5 -> 79.5 C: 72.5 -> 76.5 C-: 69.5 -> 72.5 D+: 66.5 -> 69.5 D: 62.5 -> 66.5 D-: 59.5 -> 62.5 F: 0 -> 59.5

44. 44 (0,0) (7,7) - length = 2 - name - int xPosition = 0 - int yPosition = 0 - int hits = 1 - boolean isH = false + … Ship b - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = true + … Cell - ship - isHit = false + … Cell - ship - isHit = false + … Cell - ship - isHit = false + … Cell - length = 3 - name - int xPosition = 4 - int yPosition = 7 - int hits = 1 - boolean isH = true + … Ship “canoe" “rowboat"Board - int NOT_SHOT_AT = 0 - int MISSED = 1 - … - int sizex = 8 - int sizey = 8 - ShipList ships - Cell [][] cells + … ShipList - int shipCount = 0 - Ship[] list + …