Java SE 11 Developer (1Z0-819) — Question 199

Given the code fragment:

Supplier supplier = () -> "Hello World":
// line 1

Which statement on line 1 is calling the method of the supplier object correctly?

Answer options

• A. System.out.println(supplier.apply())
• B. System.out.println(supplier.accept());
• C. System.out.println(supplier.get());
• D. System.out.println(supplier.test());

Correct answer: C

Explanation

The correct answer is C because the Supplier interface defines a method called get() that returns a value. The other options are incorrect as apply(), accept(), and test() are methods from different functional interfaces (Function, Consumer, and Predicate respectively) and do not apply to the Supplier interface.