A.The compilation fails.

B.Y@<< hashcode>>

C.Null

D.HH

A.f1.foo(li) prints Hello world!

B.f2.foo(li) prints Hello world!

C.f2.foo(li) prints Bonjour le monde!

D.f2.foo(li) prints Hola Mundo!

E.b1.foo(li) prints Hola Mundo!

F.f1.foo(li) prints Bonjour le monde!

G.b1.foo(li) prints Bonjour le monde!

H.f1.foo(li) prints Hola Mundo!

I.b1.foo(li) prints Hello world!

A.Option B

B.Option A

C.Option C

D.Option D

A.To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails.

B.A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.

C.To compile without an error, the application must have at least one module in the module source path that provides an implementation of country.CountryDetails.

D.An implementation of country.countryDetails can be added to the main module.

E.A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.

A.private void walk(){}

B.void walk(){}

C.public abstract void walk();

D.protected void walk(){}

E.abstract void walk();