Difference between OnClick() event and OnClickListener?

Question

I\'m always using onclick() event in most of my projects. But, I read about OnClickListener(). Can anyone tell what\'s the difference between these

Answer 1

OnClickListener is what waits for someone to actually click, onclick determines what happens when someone clicks

the listener is a class, the onclick is a method, this distinction is not very useful in simple cases, but if you want to be more complicated it becomes more necessary