17.2.1. Events

Try these first

1. 1.

   What is an event?

   Hint

   Think of an example of something that may happen in a program.

2. 2.

   What does an event listener do?

   Hint

   What happens when you click a button in an app?

3. 3.

   What is an event in programming?

   • A command line input
   • An action or occurrence
   • A code error

   Hint

   Think about what triggers a response in a program.

4. 4.

   True or False: An event source is the component that generates an event.

   • True
   • False

   Hint

   Recall what generates events in your applications.

5. 5.

   Design a simple interactive GUI that has multiple buttons triggering different actions.

   Hint

   Consider how each button acts as an event source.

6. 6.

   You have a program that processes keyboard events. Discuss how the program could manage multiple key presses for a game controller.

   Hint

   Think about how games respond to potentially simultaneous key presses.