Event CS Thinking Example 2
Follow the full solution, then compare it with the other examples linked below.
Example 2
mediumCompare event-driven programming with sequential programming. Give an example of each.
Solution
- 1 Step 1: Sequential: the program runs instructions in order from start to finish. Example: a script that reads a file, processes it, and outputs results.
- 2 Step 2: Event-driven: the program waits for events and responds to them as they occur. Example: a web page that responds to button clicks, mouse movements, and keyboard input.
- 3 Step 3: Most modern applications (apps, games, web pages) use event-driven programming because they need to respond to unpredictable user actions.
Answer
Sequential runs instructions in order. Event-driven waits and responds to events. Most interactive applications use event-driven programming.
Event-driven programming is essential for interactive applications. The program does not control the order of operations — the user does, through events.
About Event
A detectable action or occurrence in a program—such as a user click, key press, mouse movement, or timer expiry—that the program can respond to by executing a predefined event handler function.
Learn more about Event →More Event Examples
Example 1 easy
In a GUI application, a user clicks a 'Submit' button. Describe what happens in terms of events and
Example 3 mediumA simple alarm clock app has these features: set alarm time, snooze for 5 minutes, dismiss alarm. Id
Example 4 hardIn a game, multiple events can occur simultaneously: a key is pressed, a timer fires, and two object