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Last Updated: Oct 27, 2026
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The Oracle Java SE 11 Developer has a reputation for catching unprepared candidates off guard, and the 1z1-819 is no exception in 2026. Rather than guessing what the exam will feel like, work through the 297 practice questions at Pass4training and walk in knowing what to expect.
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Object-Oriented Approach | 15-20% | - Use local variable type inference - Apply encapsulation, inheritance, polymorphism and abstraction - Declare and instantiate classes, interfaces, abstract classes and nested classes - Overload and override methods, use constructors and initializers |
| Arrays and Collections | 12-18% | - Create and manipulate arrays, lists, sets, maps, queues and deques - Sort and search collections and arrays - Use generics, wildcards and diamond notation |
| Exception Handling and Assertions | 8-12% | - Use try-catch-finally, try-with-resources, throw and throws - Create custom exceptions and use standard exceptions - Use assertions appropriately |
| Java I/O and NIO.2 | 8-12% | - Manage files, directories and file attributes with java.nio.file API - Read and write data using streams, readers, writers and channels - Implement serialization and deserialization |
| Java Platform Module System | 8-12% | - Define modules, module declarations, requires, exports, opens, uses and provides - Compile, package and run modular applications - Use automatic modules and unnamed modules |
| Concurrency | 8-12% | - Create and manage threads, use ExecutorService, Callable and Future - Use parallel streams and CompletableFuture - Use synchronization, locks, atomic variables and concurrent collections |
| Working with Java Data Types | 10-15% | - Handle text using String, StringBuilder and StringBuffer classes - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting - Manipulate numeric values and formatting |
| Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Lambda Expressions and Streams | 12-18% | - Define and use functional interfaces and lambda expressions - Use Optional class and primitive type streams - Create and use stream pipelines, including intermediate and terminal operations |
Oracle 1z1-819 Exam — Answers to Your Questions
The Oracle Java SE 11 Developer (exam code 1z1-819) is the exam you pass to earn the Oracle Certified Professional: Java SE 11 Developer certification, a credential at the Professional level. It is also connected with related credentials such as Oracle Certified Professional: Java SE 17 Developer, Oracle Certified Professional: Java SE 21 Developer. If you are mapping out a certification path with Oracle, this exam is a milestone worth planning around.
The 1z1-819 exam includes 50 questions, and you have 90 minutes to complete them. With that many questions on the clock, pacing is part of the challenge: divide your time into rough blocks as you go, and flag the items that stall you so you can circle back at the end instead of burning minutes on a single question. A week or two before your exam date, sit at least one full timed session in the Pass4training test engine under the same time limit, so the pace feels familiar rather than frantic on the day.
You need 68% to pass the 1z1-819 exam, and the official registration fee is USD $245. That fee is due again in full for every retake, which makes thorough preparation the cheaper investment by far. Before you book your seat, test yourself with the Pass4training practice questions until you are scoring comfortably above the passing mark on a consistent basis — it is the simplest way to avoid paying for the same exam twice.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience
Eligibility rules can be adjusted by Oracle over time, so before you register, confirm the current requirements on the official exam page: view the official 1z1-819 exam information.
You can book the 1z1-819 exam through the official registration channels below:
How the exam is taken: Online proctored or onsite at Pearson VUE test centers.
Oracle lists the following official training options for candidates preparing for this exam:
Once you have worked through the training, measure your readiness with the 297 practice questions from Pass4training — they show you exactly which topics still need attention before you book the exam.
Yes. Pass4training offers a free PDF demo of the 1z1-819 practice questions, so you can judge the quality of the material firsthand before paying anything. Every purchase also includes 365 days of free updates — if Oracle changes the exam during that year, your material changes with it. And when the free update period expires, you can extend it at a 50% discount from within your member zone.
Every 1z1-819 purchase at Pass4training is backed by a 100% Money Back Guarantee: if you take the corresponding exam within 60 days of your purchase and do not pass, you can apply for a full refund. The guarantee has clear conditions — it does not apply if you sit the exam within 3 days of purchase, if you downloaded the material but never actually took the exam, or to free materials and expired orders, and the candidate name must match the payer name. To file a claim, send a scan of your exam enrollment slip together with your official Score Report PDF within 2 days of the exam; claims are processed within 7 days. If you would rather not take a refund, you can exchange the product instead and receive two additional exam preparation products of equal value for free, while your original product keeps its update service. Delivery itself is instant: your material is available for download right after payment and is also sent to your email within one minute — if it has not arrived within 2 hours, contact our customer service. There is no limit on how many computers you can install it on.
The official Oracle Java SE 11 Developer outline divides the exam content into 10 main domains. The first three are:
- Java Platform Module System — 8-12%
- Exception Handling and Assertions — 8-12%
- JDBC Database Access — 5-8%
That is only the headline view — scroll back up to the Exam Topics section on this page for the complete domain-by-domain breakdown before you plan your study schedule.
Oracle Java SE 11 Developer Sample Questions:
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)
- A. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
- B. Locale.setDefault(Locale.Category.FORMAT, Locale.CANADA_FRENCH);
- C. Locale.setDefault(Locale.Category.FORMAT, "zh-CN");
- D. Locale.setDefault("es", Locale.US);
- E. Locale.setDefault("en_CA");
Correct Answer: B,E 🗳️
Assuming the user credentials are correct, which expression will create a Connection?
- A.
- B.
- C.
- D.
- E.
Correct Answer: C 🗳️
Given:
Which statement is true?
- A. Only LocalDate class from java.time package is loaded.
- B. Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.
- C. All classes from the package java.time. are loaded for the class Diary.
- D. Tester must import java.time.LocalDate in order to compile.
Correct Answer: B 🗳️
Given the code fragment:
Which code fragment replaces the for statement?
- A. IntStream.ranged, 100).map(FizzBuzz::convert).forEach(System.out::println);
- B. IntStream.range(1, 100).mapToObj(FizzBuzz::convert).forEach(System.out::println);
- C. IntStream.rangeClosed(l, 100).map(FizzBuzz::convert).forEach(System.out::println);
- D. intstream.rangeclosed(l, 100).mapToObj{FizzBuzz::convert).forEach(System.out::printIn);
Correct Answer: C 🗳️
Which two commands are used to identify class and module dependencies? (Choose two.)
- A. java --show-module-resolution
- B. jar --show-module-resolution
- C. jmod describe
- D. jdeps --list-deps
- E. java Hello.java
Correct Answer: A,D 🗳️
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