Solutions to CompSci 94 Exam 1 Fall 2019

1. HTML tags and file
a) <title>
b) <h2>
c) <h1>
d) <p>
e) samples.html

2) B

3) C

4) D

5) A

6. (193, 63, 77) is #C13F4D

(44, 179, 29)  #2CB31D

7) A

8) C

9) D

10) B

11)
a. 3
b. 12

12)
a) simple
b) panda or biped
c) "look out", DOWN
d) stuff, someWay
e) pig's width would be any number bigger than 2.5
f) pig's width would be less than or equal to 2.5

13)

SEE PICTURE

14)
A) four
B) one

15)

A)
In the second move instruction a different random number is generated and
used, resulting in the pig moving a different distance.

B)
procedure moveRandomly

doInOrder
    constant DecimalNumber value <- nextRandomRealNumberInRange 2.0, 5.0
    this move forward value
    this say "hello"
    this move backward value

16)
do in order
   this.bunny turn left 1.0 asSeenBy this.tortoise
   this.tortoise move forward this.tortoise getDistanceInFrontOf this.hare
   this.tortoise move up this.hare getHeight
   this.tortoise move forward this.hare getDepth + this.tortoise getDepth
   this.tortoise move down this.hare getHeight
   this.tortoise setOpacity 0.0
   this.bunny say "Watch this!
   do together
       this.bunny setPaint GREEN
       this.bunny turn right 2.0


17.

Procedure changeMyColor with parameters DecimalNumber value, Paint default

if value < 0.5 then
   this setPaint BLUE
else
   if value < 1.0 then
       this setPaint RED
   else
       this setPaint default

ALTERNATE SOLUTION:

if value < 0.5 then
   this setPaint BLUE
else
   if both 0.5 <= value AND value < 1.0 then
       this setPaint RED
   else
       this setPaint default

ALTERNATE SOLUTION:

if value < 0.5 then
   this setPaint BLUE
else
   if both 0.5 <= value AND value < 1.0 then
       this setPaint RED
   else
       if value >= 1.0
           this setPaint default
       else
           do nothing