Question 1

Given:

Which two allow a.Main to allocate a new Person? (Choose two.)

Options :

A : In Line 1, change the access modifier to privateprivate Person() {

B : In Line 1, change the access modifier to publicpublic Person() {

C : In Line 2, add extends Person to the Main classpublic class Main extends Person {and change Line 3 to create a new Main objectPerson person = new Main();

D : In Line 2, change the access modifier to protectedprotected class Main {

E : In Line 1, remove the access modifierPerson() {

Answer: B,C

Question 2

Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

Options :

A :

module PrintServiceProvider {

requires PrintServiceAPI;

exports org.printservice.spi;

}

B :

module PrintServiceProvider {

requires PrintServiceAPI;

provides org.printservice.spi.Print with

com.provider.PrintService;

}

C :

module PrintServiceProvider {

requires PrintServiceAPI;

uses com.provider.PrintService;

}

D :

module PrintServiceProvider {

requires PrintServiceAPI;

exports org.printservice.spi.Print with

D18912E1457D5D1DDCBD40AB3BF70D5D

com.provider.PrintService;

}

Answer: A

Question 3

Why does this compilation fail?

Options :

A : The method Y. print (object) does not call the method super.print (object)

B : The method x. print (object) is not accessible to Y

C : In method x. print (Collection), system. Out :: prints is an invalid Java identifier.

D : The method print (object) and the method print (object...) are duplicates of each other.

E : The method Y. print (object...) cannot override the final method x.print (object....).

Answer: D

Question 4

var numbers = List.of(0,1,2,3,4,5,6,7,8,9);

You want to calculate the average of numbers. Which two codes will accomplish this? (Choose two.)

Options :

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));

Answer: B,D

Question 5

Given:

2021-04-27-22-23-17-3d4ddcb379cef75d65c8f83ed91c42db

Which would cause s to be AQCD?

Options :

A : s.replace(s.indexOf(''A''), s.indexOf(''C''), ''Q'');

B : s.replace(s.indexOf(''B''), s.indexOf(''C''), ''Q'');

C : s.replace(s.indexOf(''B''), s.indexOf(''B''), ''Q'');

D : s.replace(s.indexOf(''A''), s.indexOf(''B''), ''Q'');

Answer: B

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