Is there any other way in java to implement call backs apart from inner classes? What is the difference between callbacks and closures?
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Is there any other way in java to implement call backs apart from inner classes? What is the difference between callbacks and closures?
Closure is how you build it, callback is how you use it.
A callback can be implemented as a closure (in languages that have them) or an implementation of an interface (in Java, as an anonymous inner class or a regular class).
Callback means that you pass a piece of code to a function, so that the function can call that piece of code later. It is a special kind of parameter.
The piece of code can be a function pointer or a closure or an object with well-known methods, depending on what the language offers.