Exam Name: Java SE 11 Developer
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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Updated: Oct 20, 2026
No. of Questions: 297 Questions & Answers with Testing Engine
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- Total Questions: 297
- Updated on: Oct 20, 2026
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- Total Questions: 297
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- Total Questions: 297
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Certification is self-improvement with proof attached. TestKingFree powers your 2026 push with the Oracle Java SE 11 Developer practice set — 297 practice questions, three formats, 365 days of free updates.
Oracle 1Z0-819 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1Z0-819 |
| Exam Price: | USD $245 |
| Certificate Validity Period: | No expiration |
| Available Languages: | Chinese (Traditional, Taiwan only), English |
| Passing Score: | 68% |
| Exam Format: | Multiple Select, Multiple Choice |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 50 |
| Related Certifications: | Oracle Certified Professional: Java SE 21 Developer Oracle Certified Professional: Java SE 17 Developer |
| Recommended Training: | Java SE 11 Developer Training |
| Exam Registration: | Pearson VUE Oracle University |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended: solid Java programming knowledge and development experience |
| Official Syllabus URL: | https://education.oracle.com/product/pexam_1z0-819 |
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| 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 |
| Java I/O and NIO.2 | 8-12% | - Read and write data using streams, readers, writers and channels - Implement serialization and deserialization - Manage files, directories and file attributes with java.nio.file API |
| Concurrency | 8-12% | - Use synchronization, locks, atomic variables and concurrent collections - Create and manage threads, use ExecutorService, Callable and Future - Use parallel streams and CompletableFuture |
| 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 |
| 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 |
| Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| Java Object-Oriented Approach | 15-20% | - Use local variable type inference - Overload and override methods, use constructors and initializers - Apply encapsulation, inheritance, polymorphism and abstraction - Declare and instantiate classes, interfaces, abstract classes and nested classes |
| 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% | - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting - Manipulate numeric values and formatting - Handle text using String, StringBuilder and StringBuffer classes |
| Lambda Expressions and Streams | 12-18% | - Use Optional class and primitive type streams - Create and use stream pipelines, including intermediate and terminal operations - Define and use functional interfaces and lambda expressions |
1Z0-819 FAQ: Read Before You Register
The Oracle Java SE 11 Developer blueprint divides into 10 domains — including Concurrency (8-12%), Exception Handling and Assertions (8-12%), Secure Coding and Localization (5-8%). Those weights tell you where the points live; plan revision time in the same proportions. The full subtopic list appears above.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience Eligibility rules change occasionally, so confirm them on the official page (official 1Z0-819 exam page) before booking.
Yes — the free Oracle Java SE 11 Developer demo at TestKingFree shows real questions and answers before you pay. Every purchase includes 365 days of free updates, renewable later at 50% off.
The official format: 90 minutes, 50 questions. That ratio is the real challenge, so practice pacing — time-box each question, mark the stubborn ones, and run full simulations in the TestKingFree PC test engine until the clock stops being scary.
Yes:
Classroom learning ends where self-testing begins — after any course, work through the 297 practice questions for the Oracle Java SE 11 Developer to find weak spots before the exam does.
The Oracle Java SE 11 Developer is Oracle's official exam for the Oracle Certified Professional: Java SE 11 Developer credential (Professional level). In the job market it works as portable proof of skill — more interviews, better offers. It pairs naturally with Oracle Certified Professional: Java SE 17 Developer, Oracle Certified Professional: Java SE 21 Developer.
Two promises. Delivery: payment triggers an automatic email within a minute — instant download, unlimited devices, 24/7 help if nothing arrives within 2 hours. Refund: take the corresponding 1Z0-819 exam within 60 days of purchase, and if you fail, send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam for a full refund, processed within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Prefer a swap? Exchange for two equal-value products free.
Register through the vendor's official channels:
The Oracle Java SE 11 Developer is delivered Online proctored or onsite at Pearson VUE test centers — choose whichever suits you when booking.
USD $245 per attempt; 68% to pass. Since a retake bills the full fee again, rehearse with the 297 practice questions from TestKingFree until your mock scores clear the bar with room to spare.
Oracle Java SE 11 Developer Sample Questions:
Given:
If file "App.config" is not found, what is the result?
- A. Configuration is OK
- B. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.
- C. nothing
- D. The compilation fails.
Correct Answer: D 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Given:
Which statement is true?
- A. The code fails to compile as MyResource must implement Closeable.
- B. The code fails to compile as res2 should be declared as final.
- C. The code fails to compile as try-try-resource needs a variable declaration such as MyResource r1= res1; MyResource r2 = res2;.
- D. The code compiles successfully.
Correct Answer: D 🗳️
Given this enum declaration:
Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?
- A. String getFirstLetter() { return A.toString(); }
- B. static String getFirstLetter() { return A.toString(); }
- C. final String getFirstLetter() { return A.toString(); }
- D. static String getFirstLetter() { return Alphabet.values()[1].toString(); }
Correct Answer: B 🗳️
Given:
String originalPath = "data\\projects\\a-project\\..\\..\\another-project"; Path path = Paths.get(originalPath); System.out.print(path.normalize()); What is the result?
- A. data\\projects\\a-project\\..\\..\\another-project
- B. data\projects\a-project\another-project
- C. data\projects\a-project\..\..\another-project
- D. data\another-project
Correct Answer: C 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Given:
Which two changes need to be made to make this class compile? (Choose two.)
- A. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;
- B. Change Line 1 to a class:public class API {
- C. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;
- D. Change Line 1 to an abstract class:public abstract class API {
- E. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
Correct Answer: B,C 🗳️
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