A.double avg = numbers.stream().parallel().averagingDouble(a > a);

B.double avg = numbers.parallelStream().mapToInt (m > m).average().getAsDouble ();

C.double avg = numbers.stream().mapToInt (i > i).average().parallel();

D.double avg = numbers.stream().average().getAsDouble();

E.double avg = numbers.stream().collect(Collectors.averagingDouble(n > n));

A.Option D

B.Option A

C.Option B

D.Option E

E.Option C

A.Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2.

B.Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

C.Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

D.Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2.

A.The compilation fails.

B.abdf

C.adf

D.abcd

E.abd

A.

B.

C.

D.