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Home » Interview Questions » Core Java Interview Questions » How are Observer and Observable used?
How are Observer and Observable used?
Objects that subclass the Observable class maintain a list of observers. When an
Observable object is updated it invokes the update() method of each of its observers to
notify the observers that it has changed state. The Observer interface is implemented by
objects that observe Observable objects.
Questions to Ask in an Interview
Remember to ask questions that are relevant to the company and position for which you are interviewing.
- What are some of the common characteristics of employees that excel in this environment?
- Would you please comment on your style of management and the reporting structure?
- What is yo
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