Can an interface extend the Serializable interface?

Is it possible to create an interface extending the Serializable interface?

If yes, will that extended interface be开发者_如何学JAVAhave like the Serilizable interface? If not, why?

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Yes, you can extend the Serializable interface. If you do, all classes that implement the new subinterface will also be implementing Serializable.

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So can we do that?

Yes

will that extended interface will take the same effect as the Serilizable interface?

Yes

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Yes, it's normal. I did it once when decided that all classes in my domain should be serializable. They implemented some interface already so I simply extended that interface from Serializable (as you describe).

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I am explaining this by a situation often encountered in android. If you want to pass the instance of a custom listener(interface), to fragment, then the listener(interface) extend the Serializable can be a option for you. eg

Suppose there is an Interface :

public interface OnDurationChangeListener extends Serializable {
    public void onDurationChange(Duration duration);
}

from an Activity I want to Export the instance Listener(interface) to Fragment.

bundle.putSerializable(ARGUMENT_LISTENER, new OnDurationChangeListener() {
    @Override
    public void onDurationChange(Duration duration) {
        // some code   
    }
});

And in fragment you can Get this Listener instance as:

mListener = (OnDaysSelectListener) getArguments().getSerializable(ARGUMENT_LISTENER);

And from the fragment I can Call the Callback method in activity as

mListener.onDaysSelect(mWeeKDayList);