A high reputation in the IT field is earned with accuracy. ValidVCE maintains both for the Oracle Java SE 11 Developer — 297 practice questions for the 1z1-819 exam, current through 2026.
Oracle 1z1-819 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Passing Score: | 68% |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 80 |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Available Languages: | Portuguese, Japanese, Chinese, English, Spanish |
| Exam Price: | $245 USD |
| Sample Questions: |  |
| Exam Way: | Pearson VUE testing centers (online proctored exam also available) |
| Pre Condition: | Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. |
| Official Syllabus URL: | https://education.oracle.com/java/java-se/product_oss_279 |
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Topic 2: Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Use assertions - Create try-catch blocks and understand exception propagation - Use standard exception classes |
| Topic 3: Working with Java data types | 12% | - Read or write to object fields - Create and manipulate strings - Call methods on objects - Declare and initialize variables - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Topic 4: Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Implement encapsulation - Create inner classes and use them within other classes - Implement inheritance |
| Topic 5: Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword |
| Topic 6: Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use method references with streams - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Topic 7: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes |
| Topic 8: Controlling Program Flow | 10% | - Use Java control statements - Use break and continue statements - Use switch statements - Use for, while, and do/while loops - Use if and if/else statements |
| Topic 9: Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Create a list, set, map, or queue collection - Sort elements in a collection - Iterate through a collection - Search for elements in a collection - Filter a collection using lambda expressions |
| Topic 10: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool |
| Topic 11: Java Platform Module System | 10% | - Migrate applications to use modules - Deploy and execute modules - Declare module dependencies - Explain the default modules and class path - Use jdeps to determine dependencies - Explain the concept of module exports and requires |
| Topic 12: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Validate user input - Secure sensitive data - Prevent Denial of Service (DoS) attacks |
Oracle 1z1-819 Exam: Common Questions
The Oracle Java SE 11 Developer blueprint spans 12 domains — including Secure Coding in Java SE Application (5%), Working with Arrays and Collections (8%), Concurrency (10%). Weightings show where the exam concentrates; the full outline above covers every subtopic.
$245 USD per attempt, 68% to pass. Every retake bills the full fee, so make practice thorough first — the 297 practice questions for the 1z1-819 exam at ValidVCE are the affordable rehearsal.
Delivery is instant — an automatic email within a minute of payment, unlimited installations, and 24/7 customer assisting for downloading or purchasing problems if nothing arrives within 2 hours. If you fail the corresponding 1z1-819 exam within 60 days of purchase, pick your remedy: a full refund (email a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam; after confirmation, processed within 7 days), waiting for the next updated version free, or a free change to two other equal-value dumps. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products.
The Oracle Java SE 11 Developer is Oracle's certification exam for Oracle Java SE, at the Professional level. It demonstrates verified, job-relevant capability to employers. Related credentials include Oracle Certified Professional: Java SE 11 Developer.
90 minutes for 80 questions. Rehearse the format interactively: the ValidVCE online engine recreates the test atmosphere, so pacing is trained before it counts.
Yes — a free Oracle Java SE 11 Developer demo is available to download on our exam page. Evaluate the material yourself; purchases include 365 days of free updates, emailed immediately upon release, renewable at 50% off afterward.
Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. Eligibility rules change from time to time, so confirm the current requirements on the official page (official 1z1-819 exam page) before booking.
Oracle Java SE 11 Developer Sample Questions:
Given:
and:
Which code, when inserted on line 10, prints the number of unique localities from the roster list?
- A. .map(e -> e.getLocality())
.collect(Collectors.toSet())
.count(); - B. map(e -> e.getLocality())
.count(); - C. .map(Employee::getLocality)
.distinct()
.count(); - D. .filter(Employee::getLocality)
.distinct()
.count();
Correct Answer: D 🗳️
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:
Which statement inserted on line 14 sets NAME column to a NULL value?
- A. Stmt.setNull(2, java.lang, string);
- B. Stmt.setNull(2, null);
- C. Stmt.setNull(2, java,sql. Types, VARCHAR);
- D. Stmt.setNull(2 string, class);
Correct Answer: C 🗳️
Given:
Why does D cause a compilation error?
- A. D inherits a() from B and C but the return types are incompatible.
- B. D inherits a() only from C.
- C. D extends more than one interface.
- D. D does not define any method.
Correct Answer: A 🗳️
Given:
Which two statements can be added at line 1 in Bar to successfully compile it? (Choose two.)
- A. public List<Integer> foo(TreeSet<String> m) { ... }
- B. public List<Object> foo(Set<CharSequence> m) { ... }
- C. public ArrayList<Number> foo(Set<CharSequence> m) { ... }
- D. public List<Integer> foo(Set<String> m) { ... }
- E. public List<Integer> foo(Set<CharSequence> m) { ... }
- F. public ArrayList<Integer> foo(Set<String> m) { ... }
Correct Answer: A,C 🗳️
Given:
Which statement on line 1 enables this code to compile?
- A. Function function = x -> x.substring(0,2);
- B. Predicate function = a -> a.equals("banana");
- C. Supplier function = () -> fruits.get (0);
- D. Consumer function = (String f) -> (System.out.println(f);};
Correct Answer: A 🗳️
724 Customer Reviews
