What is App Lab?

• App Lab is a mobile app that allows you to order food from restaurants.

• App Lab is a fitness tracking app that helps you monitor your daily activities.

• App Lab is a social media platform where you can connect with friends and share photos.

• App Lab is a programming environment where you can design and create your own apps using blocks or JavaScript.

Name one subtopic of App Lab.

• Designing and building apps

• Building websites

• Writing code in Python

• Creating animations

What is the purpose of creating user interfaces in App Lab?

• To provide a visual and interactive way for users to interact with the app.

• To create a static and non-interactive experience for users.

• To make the app more complicated and difficult to use.

• To confuse users and discourage them from using the app.

What are some programming concepts used in App Lab?

• objects, classes, inheritance, polymorphism

• databases, SQL, queries, transactions

• algorithms, data structures, complexity analysis

• variables, conditionals, loops, functions, event handling

True or False: App Lab is a visual programming environment.

• False

• App Lab is a hardware programming environment.

• App Lab is a text-based programming environment.

• True

What is the main programming language used in App Lab?

• Python

• C++

• JavaScript

• HTML

What is the function of an event handler in App Lab?

• The function of an event handler in App Lab is to modify the appearance of the user interface.

• The function of an event handler in App Lab is to define what should happen when a specific event occurs.

• The function of an event handler in App Lab is to create new events.

• The function of an event handler in App Lab is to handle errors and exceptions.

What is the purpose of variables in App Lab?

• The purpose of variables in App Lab is to display data.

• The purpose of variables in App Lab is to create animations.

• The purpose of variables in App Lab is to connect to external APIs.

• The purpose of variables in App Lab is to store and manipulate data.

What is the difference between a button and a label in App Lab?

• A button is interactive, while a label is non-interactive.

• A button is used for styling, while a label is used for layout.

• A button is used for navigation, while a label is used for displaying information.

• A button is used for displaying text, while a label is used for user input.

What is the purpose of conditional statements in App Lab?

• The purpose of conditional statements in App Lab is to randomly select code to execute.

• The purpose of conditional statements in App Lab is to slow down the program execution.

• The purpose of conditional statements in App Lab is to make decisions and control the flow of the program based on certain conditions.

• The purpose of conditional statements in App Lab is to add unnecessary complexity to the program.