In the flash cards provided in Willey Efficient Learning for the book "OCP, Oracle Certified Professional Java SE 11 Programmer II Study Guide Exam 1Z0-816 and 1Z0-817" this happened in the Question Bank provided in http://app.efficientlearning.com/pv5/v8/5/app/ocp/javase11prgiisg.html?#flashcardBuilder there is an error in the answer of one flash card study card.
The question made in the study card is:
Which functional interface takes zero parameters and has a get() method?
The given answer was Consumer<T>.
This answer is not right:
Correct answer should be: Supplier<T>instead of Consumer<T>