CompSci 4 Test 1 Solutions Fall 2011 

1. D

2. User can click on the word vampires or the picture vampires.org

3.  Will be displayed as (with "beat Florida this" italized 
and weekend in bold):

Duke beat Florida this
past weekend

4. The content in the title tag is displayed on the title bar at the
top of the browser window. In this case "Ice Cream" would be on the title
bar. 


5. B

6. B

7. C

8. With move the head will come off. With turn the part moves but stays
attached to the body. 


9. A) wolf.spinner is the function. It returns a color
B) boolean
C) built-in method
D) method
E) flamingo, 3
F) some, temp
G) cow is smaller than or equal in height to the flamingo
H) cow.someway is the function. It returns a direction

10. see picture

11. A. 67
B. 31
C. 45

12. 
penguin turn to face armchair
penguin move forward (penguin distance to armchair - 2)
Do Together
   penguin move forward 3 + armchair's depth duration = 2 sec
   Do In Order
       penguin move up armchairs height duration = 1 sec
       penguin move down armchairs height duration = 1 sec
armchair say "Who are you?"
armchair.cushion set vehicle to penguin
penguin move forward 20 meters


13.
kangarooRobot.paint  obj item  color newcolor
kangarooRobot turn to face item
kangarooRobot move forward kangarooRobot distance to item
kangarooRobot turn right 1 rev asSeenBy item
item set color to newcolor

14 A)
obj world.fishToCatch 123 catchsize, obj fish1, obj fish2, obj fish3
if both fish1.color != blue and fish1's depth > catchsize
    return fish1
else
    if both fish2.color != blue and fish2's depth > catchsize
        return fish2
    else
        Do nothing
return fish3

B)
world.fishToCatch (catchsize=1, fish1=minnow, fish2=lilfish,fish3=uglyFish)
    say "I'm catchable, try to catch me"
world.fishToCatch (catchsize=1, fish1=minnow, fish2=lilfish,fish3=uglyFish)
    move forward 20 meters

15) A)
T/F world.isSlim  obj person
if (person's height > person's width * 4
    return true
else
    return false

ALTERNATE SOLUTION:
T/F world.isSlim  obj person
return  person's height > person's width * 4

B) 
obj world.tallestPersonUsingSlimRules obj person1 obj person2
if world.isSlim(person1)
    if world.isSlim(person2)
        if person1 is taller than person2
           return person1
        else 
           return person2
    else  // person 2 is NOT slim but person1 is
       return person1
else // person 1 is not slim
    if world.isSlim(person2) 
        return person2
    else  // neither person1 nor person2 are slim
        if person1 is taller than person2
            return person1
        else 
            return person2

ALTERNATE SOLUTION:
obj world.tallestPersonUsingSlimRules obj person1 obj person2
if world.isSlim(person1) and not world.isSlim(person2)
   return person1
if not world.isSlim(person1) and world.isSlim(person2)
   return person1
if person1 is taller than person2
   return person1
return person2