Codehs Practice Test

Evaluate the mathematical expression: 18 ÷ 3 + 3 × 3 – 8

• 2

• 4

• 5

• 7

If x represents the area of the number line colored blue, which inequality accurately reflects the value of x?

• x < 8

• x > 8

• x ≥ 8

• x ≤ 8

Melissa will only drink a cup of coffee if she has slept less than 8 hours or she had to wake up before 6 am.

In which of the following cases does Melissa not drink a cup of coffee?

• Melissa sleeps for 8 hours and wakes up at 7 am

• Melissa sleeps for 7 hours and wakes up at 8 am

• Melissa sleeps for 9 hours and wakes up at 5:30 am

• Melissa sleeps for 7 hours and wakes up at 6 am

Karel the Dog is instructed to move forward two spaces. Then, if Karel is standing on a ball, Karel will turn left and move forward two spaces. Otherwise, Karel will move forward two spaces. Given the starting point below, where will Karel end up?

Starting Point:

• 
• 
• 
• 

• II only

• I only

• I and III only

• I, II and IIIAnswered I, II and III

• x has a value of y

  y has a value of temp

• x has a value of 5

  y has a value of 8

• x has a value of 8

  y has a value of 5

• x and y have a value of 5

You’re building an e-commerce website. You create a class called Transaction to represent a single purchase on the site.

Which of these would not make sense as an instance variable in the Transaction class?

• private int totalTransactionsToday

• private double price

• private String purchaserEmail

• private String productName

Which for loop will properly print “good luck” 10 times?

• A

• B

• C

• D

What are parameters?

• The value that a method returns.

• The formal names given to the data that gets passed into a method.

• The values that a method prints to the screen.

• The type that is given to a variable

• 10

• 5

• This method is improperly written.

• This method returns nothing.