T10 - GUI

Question 1

Which object generates events? Which object processes events?

Answer 1

Event sources such as buttons generate events
Event listeners listens for when the event is generated
Event Handler processes the event

Question 2

What is the difference between mouseClicked and mousePressed?

Answer 2

mouse button is pressed, mousePressed event occurs.
Mouse button is pressed
and then released, mouseClicked event occurs.

Question 3

Explain the purpose of a GUI

Answer 3

AIM: provide a user interface
• Accepting and editing user inputs
• Produce outputs
• Meets user needs

Question 4

Explain the difference between Event listener and Handler

Answer 4

Event Listener: Computer program that waits for an event to occur
Once an event is trigger the listener will notify the handler