A.9

B.An exception is thrown at runtime.

C.3

D.6

A.All classes from the package java.time. are loaded for the class Diary.

B.Only LocalDate class from java.time package is loaded.

C.Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.

D.Tester must import java.time.LocalDate in order to compile.

A.An exception is thrown at runtime.

B.42=(x+y)=42

C.42=(x+y)=6

D.6=(x+y)=42

E.6=(x+y)=6

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

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

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

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

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

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

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

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

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

A.improves application robustness

B.improves security and maintainability

C.easier to expose implementation details

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

E.easier to understand the Java language