G6DICP - Lecture 20

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G6DICP - Lecture 20

• Event Driven Programming

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Linear Programming
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Event Driven Programming
Event
Event Handler (listener)
Event
Event
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Event handling in Java

• When an event occurs - an Event class is
  automatically instantiated.
• Different Event subclasses for different events -
  for example
• MouseEvent
• WindowEvent
• A Listener class listens for specific events
• Listeners must be registered (bound) to the
  source of potential events.
• Events trigger methods in their listeners.