________ is a method reference for an instance method of a class. It creates a one-parameter lambda that invokes the instance method on the lambda's argument and returns the method's result.
A) Math::sqrt
B) System.out::println
C) TreeMap::new
D) String::toUpperCase

Question

Quizplus · Accepted Answer

String::toUpperCase is the only option that references an instance method and creates a lambda function that accepts one parameter and returns the result of invoking the instance method on that parameter. The other options (Math::sqrt, System.out::println, TreeMap::new) are either static method references or constructor references, which do not fit the description given in the question.

________ Is a Method Reference for an Instance Method of a Class