Which of the Following Statements Correctly Provides a Comparator Function

question 55

Multiple Choice

Which of the following statements correctly provides a comparator function using lambda expressions to sort an array of countries by population, assuming the existence of a getPopulation method?

• A)Arrays.sort(countries, comparator(c -> c.getPopulation()));
• B)Arrays.sort(countries, compare(c1 -> c1.getPopulation(), c2 -> c2.getPopulation());
• C)Arrays.sort(countries, (c1, c2) -> c1.getPopulation() - c2.getPopulation());
• D)Arrays.sort(countries, c -> c.getPopulation());

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Definitions:

PET

Positron Emission Tomography, a scanning method that uses radioactive substances to visualize and measure changes in metabolic processes and in other physiological activities in the body.

Physiology

The scientific study of the normal functions and mechanisms occurring in a living system or organism.

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Parasympathetic Nervous System

part of the autonomic nervous system responsible for conserving energy and lowering the body's response after activation of the "fight or flight" system.