Exam Name: Java SE 11 Developer
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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Instant Download Oracle : 1Z0-819 Questions & Answers as PDF & Test Engine
Updated: Oct 30, 2026
No. of Questions: 297 Questions & Answers with Testing Engine
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A certificate with global influence deserves preparation that is equally serious. The 1Z0-819 collection at ActualVCE pairs 297 practice questions with three study formats, instant delivery within one minute of purchase, and McAfee-secured checkout, so nothing stands between you and your first study session in 2026.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java I/O and NIO.2 | 8-12% | - Read and write data using streams, readers, writers and channels - Manage files, directories and file attributes with java.nio.file API - Implement serialization and deserialization |
| Arrays and Collections | 12-18% | - Create and manipulate arrays, lists, sets, maps, queues and deques - Use generics, wildcards and diamond notation - Sort and search collections and arrays |
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Working with Java Data Types | 10-15% | - Manipulate numeric values and formatting - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting - Handle text using String, StringBuilder and StringBuffer classes |
| Java Platform Module System | 8-12% | - Use automatic modules and unnamed modules - Define modules, module declarations, requires, exports, opens, uses and provides - Compile, package and run modular applications |
| Concurrency | 8-12% | - Create and manage threads, use ExecutorService, Callable and Future - Use synchronization, locks, atomic variables and concurrent collections - Use parallel streams and CompletableFuture |
| Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Java Object-Oriented Approach | 15-20% | - Use local variable type inference - Declare and instantiate classes, interfaces, abstract classes and nested classes - Overload and override methods, use constructors and initializers - Apply encapsulation, inheritance, polymorphism and abstraction |
| Exception Handling and Assertions | 8-12% | - Use assertions appropriately - Use try-catch-finally, try-with-resources, throw and throws - Create custom exceptions and use standard exceptions |
| Lambda Expressions and Streams | 12-18% | - Create and use stream pipelines, including intermediate and terminal operations - Define and use functional interfaces and lambda expressions - Use Optional class and primitive type streams |
1Z0-819 Exam FAQ: What Candidates Ask Before They Buy
The official Oracle Java SE 11 Developer outline divides the exam into 10 major domains. The three that carry the most weight are Java Platform Module System (8-12%), Exception Handling and Assertions (8-12%), and Java I/O and NIO.2 (8-12%). You can see the full breakdown in the topics section above, and the 297 practice questions at ActualVCE cover every listed domain.
The Oracle Java SE 11 Developer exam presents 50 and allows 90 minutes. That pacing works out to a bit more than a minute per question, so timed practice matters — the ActualVCE Desktop and Online Test Engines both let you rehearse under exam-style time limits before the real thing.
Oracle recommends the following training and study resources for the Oracle Java SE 11 Developer exam:
Official courses are a solid foundation, and many candidates pair them with the 297 practice questions from ActualVCE to test whether the material actually sticks under exam-style conditions.
The 1Z0-819 exam is a Oracle certification exam that validates the knowledge outlined in the official Oracle Java SE 11 Developer syllabus shown above. It is associated with the following credential paths: Oracle Certified Professional: Java SE 17 Developer, Oracle Certified Professional: Java SE 21 Developer. Employers in 2026 continue to treat Oracle credentials as reliable proof of skill, which is why the exam attracts candidates at many career stages. ActualVCE supports your preparation with 297 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience For the most current eligibility details, always confirm on the official Oracle exam page before you schedule.
ActualVCE backs your purchase with a written refund commitment: if you take the Oracle Java SE 11 Developer exam within 60 days of purchase and do not pass, you can claim a full refund. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. To claim, submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Prefer to keep studying instead? You can exchange for two free exam products of equal value while keeping your original product's update service. Orders are delivered by email within 1 minute — if nothing arrives within 2 hours, contact support and the team will sort it out.
The passing score for the Oracle Java SE 11 Developer exam is 68%, and the registration fee is USD $245. Since a retake means paying the fee again, it makes financial sense to walk in prepared — a self-test with the ActualVCE practice engines shows you roughly where you stand before you spend that money.
Every purchase includes the full set of 297 practice questions for the Oracle Java SE 11 Developer exam in all three formats — a printable PDF prepared by experts, a Desktop Test Engine for Windows with two practice modes that simulates the real exam environment offline, and an Online Test Engine that runs in any browser on Windows, Mac, Android, and iOS with test history and performance review. You can install the products on unlimited computers, try a free demo first, and receive free updates for 365 days. When your update year ends, renewal comes at 50% off.
Online proctored or onsite at Pearson VUE test centers Registration for the Oracle Java SE 11 Developer exam is handled through these official channels:
Book early — popular testing windows fill quickly, and your ActualVCE practice questions will be waiting in your inbox within 1 minute of purchase.
Oracle Java SE 11 Developer Sample Questions:
Given:
Which statement is true?
- A. Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.
- B. All classes from the package java.time. are loaded for the class Diary.
- C. Tester must import java.time.LocalDate in order to compile.
- D. Only LocalDate class from java.time package is loaded.
Correct Answer: A 🗳️
Which method throws an exception for not-a-number and infinite input values?
- A.
- B.
- C.
- D.
Correct Answer: A 🗳️
Given:
What is the result?
- A. TuesdayUnknown
- B. WorkingUnknown
- C. Working
- D. Tuesday
- E. Unknown
- F. The compilation fails.
Correct Answer: E 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
Given:
and:
Which code, when inserted on line 10, prints the number of unique localities from the roster list?
- A. .filter(Employee::getLocality)
.distinct()
.count(); - B. map(e -> e.getLocality())
.count(); - C. .map(e -> e.getLocality())
.collect(Collectors.toSet())
.count(); - D. .map(Employee::getLocality)
.distinct()
.count();
Correct Answer: A 🗳️
Which two statements inserted independently on line 3 will make this code compile?
- A. Return new House<Dog> () ;
- B. Return new House<?>();
- C. Return new House<A> () ;
- D. Return new House<admin1>();
- E. Return new House <Petdog> () ;
Correct Answer: A,D 🗳️
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