WK 9 variable

DISPLAY ("Going for a walk:")

DISPLAY ("ᕕ( ᐛ )ᕗ")

This is a computer program with _________statements.

• 1

• 2

• 3

• 4

DISPLAY ("Going for a walk:")

DISPLAY ("ᕕ( ᐛ )ᕗ")

Each statement calls a _________

named DISPLAY which expects a single ________ to determine what to display on the screen.

• function, method

• function, statement

• statement, string

• procedure, parameter

Which of these is the best explanation of pseudocode?

• 
  Pseudocode is a language that represents concepts across programming languages, but cannot actually be run by a computer.

• Pseudocode is a standard programming language that is understood by all computers.

• Pseudocode is the language that runs the fastest on computers.

• 
  Pseudocode is a programming language that looks just like natural human language.

score ← 1

shots ← 0

DISPLAY (score)

DISPLAY (shots)

shots ← 3

score ← shots

DISPLAY (shots)

DISPLAY (score)

What will be the output of that code?

• 1 0 3 4

• 1 0 4 3

• 1 0 4 4

• 1 0 3 3

hunger ← 6

cuddliness ← 9

playfulness ← 7

playfulness ← cuddliness

DISPLAY (playfulness)

DISPLAY (cuddliness)

DISPLAY (hunger)

After running that code, what will be displayed?

• 7 9 6

• 9 9 6

• 7 7 6

• 6 6 9

onionCount ← 2

garlicCount ← 6

what is the value of garlicCount

• 2

• 8

• 6

• 4

Darrell is making a program to track his grades. He made the mistake of using the same variable name to track 3 different test grades, though. Here's a snippet of his code:

a ← 89

a ← 97

a ← 93

What will be the value of a after this code runs?

• 89

• 97

• 93

• 33

x ← 23

y ← 50

temp ← y

y ← x

x ← temp

what is the final value?

• x is 23

  y is 50

  temp is 50

• x is 50

  y is 50

  temp is 50

• x is 50

  y is 23

  temp is 23

• x is 50

  y is 23

  temp is 50

What will happen if you type pseudocode in another language's programming environment and try to run the program?

• The program will run, because all programming environments understand pseudocode.

• The program will not run, because programming environments only understand the language they're built for.

• The program will run as long as you're using the pseudocode for that language (e.g. pseudo-JS for JavaScript).

• The program will not run, because pseudocode is not a complete code.

What is the purpose of using meaningful, descriptive names for variables?

• To make code easy to understand

• To reduce the number of variables used

• To improve program execution speed

• To prevent syntax errors