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3 cards from this section. Quick, good the night before a test.
Define an interface in Java.
Start with the keyword 'interface'.
What type of methods does an interface contain?
Recall that these methods are just signatures without bodies.
What does an interface in Java allow a class to do?
Focus on the contract aspect of interfaces.
True or False: A class can implement multiple interfaces in Java.
Think about how different functionalities can be mixed.
Create a Java program with an interface called 'Playable' that includes a method 'play()'. Then implement this interface in two classes: 'Guitar' and 'Piano'. Show how each class implements the method differently.
Focus on creating the interface and think about two musical instruments you can use.
Discuss how using interfaces can lead to better software design. Provide at least two examples of their advantages in real-world applications.
Reflect on the principles of software engineering and how they apply to interface usage.
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