Unit 3: Intro to App Design (APCSP 22-23, Code.org)

What will the console log say when this program is run? Assume the user clicks the button after 10 seconds of the program being run.

• "Starting my program!"

  "You clicked the button!"

  "Ending my program!"

• "Starting my program!"

  "Ending my program!"

  "You clicked the button!"

• "You clicked the button!"

  "Starting my program!"

  "Ending my program!"

• "You clicked the button!"

  "Ending my program!"

  "Starting my program!"

After the program is run, what will the text color of smallButton be?

• red

• blue

• green

• yellow

Which of the following is not one of the purposes of having potential users test a program or app?

• To write the code for the program/app.

• To see if there are any bugs in the program/app.

• To get input on the design of the program/app.

• To see how a user interacts with the app/program.

If the user clicks the button, what color will "topButton" be when the program finishes running?

• red

• green

• blue

• orange

When this program is run, the user clicks "topButton" then "bottomButton" and then "topButton" again. What will be displayed in the console?

• aaa

  bbb

  ccc

  aaa

• aaa

  ccc

  bbb

  aaa

• ccc

  aaa

  bbb

  aaa

• aaa

  bbb

  aaa

  ccc

Which line of code is most likely to return an error?

• 1

• 2

• 3

• 4

Which of the following describes "event-driven programming?"

• Commands run one at a time in the order that they are written.

• Commands run one at a time in response to user interactions or other events.

• Commands all run at the same time when the user interacts with the app.

• Commands all run whether or not the user interacts with the program.

What is a reason to include comments in a program?

• Comments tell the computer what the code is doing.

• Comments tell the programmer what the code is doing.

• Comments help the user work an app more effectively.

• Comments will show up in the console so when the program is run, the programmer know what happens.

A single instruction for the computer. Put many together and you get algorithms and computer programs.

• Algorithm

• onEvent

• console.log

• Command

A sequence of steps written in a programming language that can be followed to solve a problem, especially by a computer.

• Debug

• Event

• Algorithm

• Computer Program