How are Observer and Observable used in java?

Question

Sumit Kesarwani · Answer

Objects that subclass the Observable class maintain a list
of observers.and 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.and The Observer interface is implemented by objects that observe Observable
objects.

interview

How are Observer and Observable used in java?

Sumit Kesarwani

Can you answer this question?

1 Answers

Liked By