You are creating a Vessel class which is supposed to use an interface named Measurable. Which of the following class declaration statements will accomplish this?
A) public class Vessel inherits Measurable
B) public class Vessel implements Measurable
C) public class Vessel interfaces Measurable
D) public class Vessel extends Measurable

Question

Quizplus · Accepted Answer

To use an interface in a class, we need to implement that interface. So, the correct way to use the Measurable interface in the Vessel class is by using the keyword "implements". Option A and D use the keywords "inherits" and "extends" respectively, which are not valid for implementing an interface. Option C uses the keyword "interfaces", which is not a valid keyword in Java.

You Are Creating a Vessel Class Which Is Supposed to Use