16.4.1 - Event Sources and Listeners
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is an event source in GUI programming?
💡 Hint: Think about what components trigger actions in your GUI.
Describe the relationship between event sources and listeners.
💡 Hint: Consider why the listener is necessary.
1 more question available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the role of an event source?
💡 Hint: Think about what happens when you click a button.
True or False: An ActionListener is a type of event source.
💡 Hint: Remember the definitions of source and listener.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
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!'
💡 Hint: Consider how the Button and JLabel interact through the ActionListener.
Why is it important to properly manage event sources and listeners? Illustrate with an example.
💡 Hint: Think about the consequences of a missing or incorrect listener.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.