Week 9 Event driven programing

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学び始める

質問		答え
what two things does an interactive GUI component need to process user input 学び始める		event listener to register the user action adn event handler the implement a responce
describe an interface 学び始める		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? 学び始める		true
To handle an AWT event you must implement an interface (ActionListener, WindowListener, etc.). true or flase? 学び始める		true
is an interface part of class hierachy? 学び始める		No, Unrelated classes can implement the same interface
can an interface implement methods? 学び始める		no
A class can implement many interfaces but can extend only one superclass. true or flase? 学び始める		true