Free Oracle 1Z0-819 Exam Questions

Become Oracle Certified with updated 1Z0-819 exam questions and correct answers

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Total 515 Questions | Updated On: Apr 28, 2026

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Question 1

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

A : module PrintServiceProvider {requires PrintServiceAPI;exports org.printservice.spi;}

B : module PrintServiceProvider {requires PrintServiceAPI;provides org.printservice.spi.Print withcom.provider.PrintService;}

C : module PrintServiceProvider {requires PrintServiceAPI;uses com.provider.PrintService;}

D : module PrintServiceProvider {requires PrintServiceAPI;exports org.printservice.spi.Print withD18912E1457D5D1DDCBD40AB3BF70D5Dcom.provider.PrintService;}

Answer: A

Question 2

Which two commands are used to identify class and module dependencies? (Choose two.)

A : jmod describe

B : java Hello.java

C : jdeps --list-deps

D : jar --show-module-resolution

E : java --show-module-resolution

Answer: A,C

Question 3

Given:

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

What is the output?

A : 300

B : Exception

C : 200

D : 100

Answer: A

Question 4

Which three annotation uses are valid? (Choose three.)

A : Function func = (@NonNull x) > x.toUpperCase();

B : var v = ''Hello'' + (@Interned) ''World''

C : Function func = (var @NonNull x) > x.toUpperCase();

D : Function func = (@NonNull var x) > x.toUpperCase();

E : var myString = (@NonNull String) str;

F : var obj = new @Interned MyObject();

Answer: A,C

Question 5

Given:

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

A :

B :

C :

D :

Answer: B

Page: 1 / 103

Total 515 Questions | Updated On: Apr 28, 2026

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