1z1-819 by Oracle Actual Free Exam Questions And Answers

Question 1

Which interface in the java.util.function package can return a primitive type?

A. Supplier

B. ToDoubleFunction

C. LongConsumer

D. BiFunction

Discussion 0

Correct Answer: B Vote an answer

Question 2

Given:

executed with this command:
java Main one two three
What is the output of this class?

A. nothing

B. 1) one

C. A java.lang.ArrayIndexOutOfBoundsException is thrown.

D. The compilation fails.

E. 1) one2) two3) three

Discussion 0

Correct Answer: E Vote an answer

Question 3

Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

A. setCCount(c) = cCount;

B. setGCount(g);

C. aCount = a;

D. cCount = setCCount(c);

E. tCount = tCount;

Discussion 0

Correct Answer: C,E Vote an answer

Question 4

Which line of code results in a compilation error?

A. line n3

B. line n4

C. line n2

D. line n1

Discussion 0

Correct Answer: B Vote an answer

Question 5

Give:

And the code fragment:

Which three code fragments, at line n1 prints SPRING?

A. System.out.printin(Season,values(1)};

B. System.out.printin(Season.SPRING);

C. System.out.printin (Season.valueof(''SPRING").ordinal() );

D. System.out.printin (sa(0)}:

E. System.out.printin(Season.valueOf(''SPRING"). Ordinal() );

F. System.out.printin (sA(1)};

G. System.out.printin (Season.valueof ('s') );

Discussion 0

Correct Answer: B,C,F Vote an answer

Question 6

Which is the correct order of possible statements in the structure of a Java class file?

A. package, class, import

B. package, import, class

C. class, package, import

D. import, package, class

E. import, class, package

Discussion 0

Correct Answer: B Vote an answer

Question 7

Given:

What is the result?

A. 3, 4

B. 3, 4, 3, 14

C. The program prints 3 4 and throws a ClassCastException

D. 3, 4, 3

Discussion 0

Correct Answer: C Vote an answer

Question 8

Which is a proper JDBC URL?

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

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

C. jdbc:mysql://localhost:3306/database

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

Discussion 0

Correct Answer: C Vote an answer

Question 9

Given:

Which option should you choose to enable the code to print Something happened?

A. Add extends Exception on line 1.
Add extends GeneralException on line 2.

B. Add extends GeneralException on line 1.
Add extends Exception on line 2.

C. Add extends SpecificException on line 1.
Add extends GeneralException on line 2.

D. Add extends Exception on line 1.
Add extends Exception on line 2.

Discussion 0

Correct Answer: A Vote an answer

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Question 10

Given the declaration:

In which two locations is it legal to apply the @Resource annotation?

Discussion 0

Correct Answer: B,D Vote an answer

Question 11

Given:

and

Which code fragment on line 1 makes the s1 set contain the names of all employees born before January 1, 1989?

A. Option B

B. Option A

C. Option D

D. Option C

Discussion 0

Correct Answer: A Vote an answer

Question 12

Given:

What is the result?

A. nothing

B. watermelonorangelemongrapeapricotapple

C. appleapricotgrapelemonorangewatermelon

D. appleorangegrapelemonapricotwatermelon

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).

Question 13

Given the code fragment:

What is the result?

A. 1 3 5 7 9

B. 2 4 6 8 10

C. 1 3 5 7 9 11

D. 2 4 6 8

Discussion 0

Correct Answer: A Vote an answer

Oracle Java SE 11 Developer - 1z1-819 Exam Practice Test

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