PDF Version DemoCertification blueprints change, and outdated material can quietly sink your 1z1-819 score. PassExamDumps reviews and refreshes its Oracle Java SE 11 Developer practice questions on a continuous basis, tracking every objective change the vendor announces. Your 2026 purchase includes 365 days of free updates, so the material you study is the material being tested.
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths - Use Stream API with files - Use NIO2 API to work with file systems and file attributes |
| Working with Java OOP | 15% | - Implement polymorphism - Create inner classes and use them within other classes - Use abstract classes and interfaces - Implement encapsulation - Apply the static keyword to methods and fields - Apply the final keyword to classes, methods, and fields - Implement inheritance |
| Working with Arrays and Collections | 8% | - Search for elements in a collection - Sort elements in a collection - Iterate through a collection - Create a list, set, map, or queue collection - Use generic types and diamond operator - Filter a collection using lambda expressions |
| Working with Java data types | 12% | - Declare and initialize variables - Call methods on objects - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Controlling Program Flow | 10% | - Use Java control statements - Use break and continue statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops |
| Exception Handling and Localization | 10% | - Use assertions - Create and throw custom exceptions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Use standard exception classes |
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Validate user input - Secure sensitive data |
| Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Execute queries and process results - Use parameterized queries - Describe the advantages of using a connection pool |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Java Platform Module System | 10% | - Declare module dependencies - Deploy and execute modules - Explain the concept of module exports and requires - Use jdeps to determine dependencies - Migrate applications to use modules - Explain the default modules and class path |
| Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword |
Your Oracle 1z1-819 Exam Questions, Answered
The 1z1-819 exam is the official test behind the Oracle Java SE certification, a Professional-level credential from Oracle. Passing it validates the skills measured by the Oracle Java SE 11 Developer objectives and proves to employers that you can apply those skills in real-world scenarios, not just recite theory. The credential also sits alongside related certifications such as Oracle Certified Professional: Java SE 11 Developer, making it a strong building block in a broader Oracle certification path. For candidates planning a longer-term career move, the 1z1-819 exam is often the step that turns study effort into a verifiable, resumé-ready qualification.
The Oracle Java SE 11 Developer blueprint is divided into 12 exam domains. The first three are Database Applications with JDBC (5%), Exception Handling and Localization (10%), and Working with Streams and Lambda expressions (13%). The weightings matter: they tell you where the bulk of your score comes from, so allocate study time in proportion rather than spreading it evenly. Scroll back to the exam topics section above for the complete domain-by-domain breakdown of the 1z1-819 exam.
The Oracle Java SE 11 Developer exam gives you 90 minutes to work through 80 questions. Do the math before test day: divide the total time by the question count to set a steady per-question pace, and treat that number as a hard budget rather than a guideline. When a question eats more than its share, flag it and move on — a flagged question can be revisited, but lost minutes can't. Running two or three full timed mock exams in the PassExamDumps test engine before your exam date is the most reliable way to make that pacing automatic.
The passing score for the Oracle Java SE 11 Developer exam is 68%, and the official registration fee is $245 USD. Keep in mind that a failed attempt means paying that fee in full again — there are no discounted retakes — so booking the exam before you're ready is the most expensive shortcut in certification. A practical rule: take a timed self-assessment with PassExamDumps practice tests first, and only schedule your seat once you're scoring comfortably above the passing mark with time to spare. That buffer absorbs exam-day nerves and the handful of questions that always seem to come from nowhere.
According to Oracle, the Oracle Java SE 11 Developer exam uses the following question formats: Multiple Choice, Multiple Select. Different formats reward different habits. For scenario-based items, read the final sentence of the question stem first so you know what's actually being asked before you dig into the details, and never change an answer unless you can point to the exact clue you missed. The PassExamDumps question bank lets you rehearse every format until each one feels routine.
Oracle currently offers the 1z1-819 exam in English, Japanese, Chinese, Portuguese, Spanish. Choose the language you can reason in fastest under time pressure — reading speed matters more than most candidates expect. If you plan to test in English, working through PassExamDumps's 297 English practice questions doubles as terminology training, so the phrasing on exam day feels familiar rather than foreign.
The credential you earn by passing the Oracle Java SE 11 Developer exam remains valid for Lifetime (no expiration, but recertification recommended to stay current). That clock is worth protecting: set a reminder well before the expiry date and review the official recertification options early, so staying certified becomes a planned task instead of a last-minute scramble. Recertification policies are set by Oracle and can change, so confirm the current rules on the official certification page.
Every Oracle Java SE 11 Developer product contains the same 297 expert-prepared practice questions; only the way you study with them changes:
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Ready when you are: download the free 1z1-819 demo, pick the format that fits your routine, and start working through 297 practice questions today.
Oracle Java SE 11 Developer Sample Questions:
Given:
What is required to make the Foo class thread safe?
- A. Move the declaration of lock inside the foo method.
- B. No change is required.
- C. Replace the lock constructor call with new ReentrantLock (true).
- D. Make the declaration of lock static.
Correct Answer: C 🗳️
Given:
What must be added in line 1 to compile this class?
- A. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }
- B. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
- C. catch(FileNotFoundException | IOException e) { }
- D. catch(FileNotFoundException | IndexOutOfBoundsException e) { }
- E. catch(IOException e) { }
Correct Answer: E 🗳️
Given:
public class X {
}
and
public final class Y extends X {
}
What is the result of compiling these two classes?
- A. The compilation fails because either class X or class Y needs to implement the toString() method.
- B. The compilation fails because a final class cannot extend another class.
- C. The compilation succeeds.
- D. The compilation fails because there is no zero args constructor defined in class X.
Correct Answer: A 🗳️
Explanation: Only visible for PassExamDumps members. You can sign-up / login (it's free).
Given:
Which two are correct? (Choose two.)
- A. Option D
- B. Option C
- C. Option A
- D. Option B
Correct Answer: A,B 🗳️
Given:
What is the result?
- A. 3
- B. 80
- C. The compilation fails.
- D. 25
- E. 385
Correct Answer: E 🗳️
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