Lesson 1 Event- Driven programming

Which of the following is a property of Event-driven programs?

• Dynamic
• Bring challenges 
• Lead to unpredictable program execution and an associated set of challenges. 
• All of the above

UI stands for …….

•  Uniform Interface
•  Uniform Interface
• User Interface
• None of the above

Which of the following is an example of UI elements

• Button
• Image
• Click
• A and B

Which of the following is an example of UI Events   

• Click
• Scroll
• Move Mouse
• All of the above

Elements are also called .....

• Objects
• Controls
• Events
• all of the above

Which of the following is the Event Listener command used in app lab

• Event
• onEvent
• objectEvent
• Non of the above

Which of the following is the best definition for Event handling

•  Program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)
• Coding tasks involved in making your app respond to events by triggering functions.
• Function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.
• A command (onEvent in App Lab) that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

Which of the following is the best definition for Event Listener

•  Program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)
• Coding tasks involved in making your app respond to events by triggering functions.
• Function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.
• A command (onEvent in App Lab) that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

Which of the following is the best definition for callback function

•  Program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)
• Coding tasks involved in making your app respond to events by triggering functions.
• Function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.
• A command (onEvent in App Lab) that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

Which of the following is the best definition for Event- driven program

•  Program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)
• Coding tasks involved in making your app respond to events by triggering functions.
• Function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.
• A command (onEvent in App Lab) that can be set up to trigger a function when a particular type of event occurs on a particular UI element.