Given the code fragment:

What is the result?

You are developing a banking module. You have developed a class named ccMask that has a maskcc method.
Given the code fragment:

You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement? (Choose two.)

Given the code fragment:

Test.java:

Which is the result?

Given:

What is the result?

Given the following class declarations:
-public abstract class Animal -public interface Hunter -public class Cat extends Animalimplements Hunter -public class Tiger extends Cat
Which answer fails to compile?