A.nothing

B.It fails to compile.

C.0

D.A java.lang.IllegalArgumentException is thrown.

E.10

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

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

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

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

A.An IllegalThreadStateException is thrown at run time.

B.Three threads are created.

C.The compilation fails.

D.Four threads are created.

A.List<? super Short> list = new ArrayList<Number>();

B.List<? super Number> list = new ArrayList<Integer>();

C.List<? extends Number> list = new ArrayList<Byte>();

D.List<? extends Number> list = new ArrayList<Object>();

E.List<? super Float> list = new ArrayList<Double>();