What does it mean that a Listener can be replaced with lambda?

Question

I have implemented an AlertDialog with normal negative and positive button click listeners.

When I called new DialogInterface.OnClickListener()

Answer 1

To replace the classic new DialogInterface.OnClickListener() implementation with lambda expression is enough with the following

 builder.setPositiveButton("resourceId", ((DialogInterface dialog, int which) -> {
      // do something here
 }));

It´s just taking the onClick event parameters.