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Week 9 Event driven programing
Week 9 Event driven programing
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what two things does an interactive GUI component need to process user input
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event listener to register the user action adn event handler the implement a responce
describe an interface
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An interface is like a class, but it can contain only abstract methods and constant fields (no class variables).
The class that implements an interface should override all interface methods. true or false?
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true
To handle an AWT event you must implement an interface (ActionListener, WindowListener, etc.). true or flase?
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true
is an interface part of class hierachy?
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No, Unrelated classes can implement the same interface
can an interface implement methods?
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no
A class can implement many interfaces but can extend only one superclass. true or flase?
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true
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See related flashcards:
Week2 objects and parameters
Week 5 Hierarchy, Inheritance, Superclasses and Subclasses
Week 6 Inheritance Vector, ArrayList and LinkedList
Week7 Graphical User Interface (GUI). Abstract Windowing Toolkit (AWT) and Swing
Week 8 Inheritance. Abstract classes. Polymorphism
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