Online 1Z0-819 Practice Test

Question 1

Analyze the code:

Which two options can you insert inside println method to produce Global:namescope? (Choose two.)

Options :

A : Test.prefix+Test.name

B : new Test().prefix+new Test().name

C : Test.prefix+Test.getName()

D : Test.getName+prefix

E : prefix+Test.name

F : prefix+name

Answer: B,C

Question 2

Given:

You want to calculate the average of the Player’s score.

Which statement inserted on line 1 will accomplish this?

Options :

A : players.stream().average().orElse(0.0);

B : players.stream().mapToInt(a -> a.score).average().orElse(0.0);

C : players.stream().mapToDouble(a -> a.score).average();

D : players.stream().map(a -> a.score).average();

Answer: B

Question 3

Given:

Which code, when inserted at one or more marked positions, would allow classes B and C to compile?

Options :

A : @Override // position 3void x () {} // position 3@Override // position 3public void z() { } // position 3

B : @Override // position 2public void z() { } // position 3

C : implements A // position 1@Override // position 2

D : public void z() { } // position 3

Answer: B

Question 4

Given

executed with this command:

java Main one two three

What is the output of this class?

Options :

A : The compilation fails.

B : 1) one2) two3) three

C : A java.lang.ArrayIndexOutOfBoundsException is thrown.

D : 1) one

E : nothing

Answer: B

Question 5

Which is a proper JDBC URL?

Options :

A : jdbe.mysql.com://localhost:3306/database

B : http://localhost.mysql.com:3306/database

C : http://localhost

mysql.jdbc:3306/database

D : jdbc:mysql://localhost:3306/database

Answer: D

EXPERTY DESIGNED 1Z0-819 PRACTICE TEST