Unit 6 Review

A school is developing a program to keep track of information about students and their class schedules. In which of the following instances would a data abstraction be most helpful?

• The program includes individual variables to store the names of each student rather than a single list of students.

• A program includes multiple comments that could be combined into a single comment

• A program includes repeated programming statements that could be moved inside a loop

• A program includes repeated code that could be moved inside a function.

Which of the following will result in ONLY all the items in list being printed to the console if placed where the program reads <INSERT CODE> and the program is run?

• i < list[list.length]

• i < list.length

• i < list[0]

• i < list[1]

wordList is a list of words that currently contains the values ["tree", "rock", "air"]

Which of the following lines will result in the list containing the values ["air", "rock", "air"]

• wordList[0] = wordList[2]

• wordList[2] = wordList[0]

• insertItem(wordList, 0, "air")

• removeItem(wordList,0)

What will be displayed in the console when this program runs?

• 2

• 3

• 20

• 30

What will be displayed when this program finishes running?

• 3

• 6

• 7

• 5

What will be displayed in the console when the following program runs?

• 0 2 4 6

• 0 2 4

• 2 4 6

• The program will result in an infinite loop

What will the following program display in the console?

• 0 1 2 3

• 1 2 3 4

• 1 2 3

• 1 2 3 4

What will the following program display in the console?

• 0

• 5

• 10

• 15

The following question uses a robot in a grid of squares. The robot is represented by a triangle, which is initially facing up.

Which of the following programs will move the robot to the gray square following the path shown on the grid?

• 
• 
• 
• 

ageList and gradeList contain information about students in a classroom. A programmer has already written the following code with that information.

Which of the following programs will result in filteredNames only containing the names of students who are 17 or older?

• 
• 
• 
•