A.Change Line 2 to an abstract method:
public abstract void checkValue(Object value)
throws IllegalArgumentException;

B.Change Line 2 access modifier to protected:
protected void checkValue(Object value)
throws IllegalArgumentException;

C.Change Line 1 to an abstract class:
public abstract class API {

D.Change Line 1 to extend java.lang.AutoCloseable:
public interface API extends AutoCloseable {

E.Change Line 1 to a class:
public class API {

A.Map: 0 Keys: 0 Values: 0

B.The compilation fails.

C.Map: 4 Keys: 4 Values: 4

D.Map: 4 Keys: 0 Values: 0

E.Map: 0 Keys: 4 Values: 4

A.easier to expose implementation details

B.easier to build a custom runtime linking application modules and JDK modules

C.improves application robustness

D.improves security and maintainability

E.easier to understand the Java language

A.Fox class does not have to override inhabit method, so long as it does not try to call it.

B.Fox class must implement either Forest or Town interfaces, but not both.

C.Fox class must provide implementation for the inhabit method.

D.The inhabit method implementation from the first interface that Fox implements will take precedence.

E.Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.

A.It fails to compile.

B.java.lang.IllegalAccessException is thrown.

C.null

D.nothing

E.Student