Practice Event Sources And Listeners (16.4.1) - GUI Programming (e.g., using AWT/Swing or JavaFX)

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5 questions

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6 sample questions

Question 1.
What is an event source in GUI programming?
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Think about what components trigger actions in your GUI.
Question 2.
Describe the relationship between event sources and listeners.
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Consider why the listener is necessary.
3Question 3.
What is the role of an event source?
- Processes an event
- Generates an event
- Displays information
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Think about what happens when you click a button.
4Question 4.
True or False: An ActionListener is a type of event source.
- True
- False
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Remember the definitions of source and listener.
Question 5.
Create a Java GUI application that has a button. When the button is clicked, it should change the text of a label to 'Button Pressed!'
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Consider how the Button and JLabel interact through the ActionListener.
Question 6.
Why is it important to properly manage event sources and listeners? Illustrate with an example.
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Think about the consequences of a missing or incorrect listener.

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