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Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1Z0-819 |
| Passing Score: | 68% |
| Certificate Validity Period: | No expiration |
| Exam Duration: | 90 minutes |
| Exam Price: | USD $245 |
| Exam Format: | Multiple Choice, Multiple Select |
| Related Certifications: | Oracle Certified Professional: Java SE 21 Developer Oracle Certified Professional: Java SE 17 Developer |
| Real Exam Qty: | 50 |
| Available Languages: | Chinese (Traditional, Taiwan only), English |
| Recommended Training: | Java SE 11 Developer Training |
| Exam Registration: | Oracle University Pearson VUE |
| Sample Questions: |  |
| 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日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exception Handling and Assertions | 8-12% | - Use assertions appropriately - Create custom exceptions and use standard exceptions - Use try-catch-finally, try-with-resources, throw and throws |
| Java Object-Oriented Approach | 15-20% | - Overload and override methods, use constructors and initializers - Apply encapsulation, inheritance, polymorphism and abstraction - Declare and instantiate classes, interfaces, abstract classes and nested classes - Use local variable type inference |
| Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Lambda Expressions and Streams | 12-18% | - Define and use functional interfaces and lambda expressions - Create and use stream pipelines, including intermediate and terminal operations - Use Optional class and primitive type streams |
| Working with Java Data Types | 10-15% | - Handle text using String, StringBuilder and StringBuffer classes - Manipulate numeric values and formatting - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting |
| 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 |
| Arrays and Collections | 12-18% | - Sort and search collections and arrays - Create and manipulate arrays, lists, sets, maps, queues and deques - Use generics, wildcards and diamond notation |
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Concurrency | 8-12% | - Use synchronization, locks, atomic variables and concurrent collections - Use parallel streams and CompletableFuture - Create and manage threads, use ExecutorService, Callable and Future |
| Java Platform Module System | 8-12% | - Compile, package and run modular applications - Define modules, module declarations, requires, exports, opens, uses and provides - Use automatic modules and unnamed modules |
Oracle Java SE 11 Developer (1Z0-819日本語版) (1Z0-819日本語) — Questions Candidates Actually Ask
The 1Z0-819日本語 exam, officially known as Oracle Java SE 11 Developer (1Z0-819日本語版), is the Oracle test that leads to the Oracle Certified Professional: Java SE 11 Developer certification at the Professional level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as Oracle Certified Professional: Java SE 17 Developer, Oracle Certified Professional: Java SE 21 Developer.
The 1Z0-819日本語 exam contains 50 questions, and you have 90 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Exams test engines are the most reliable way to build that rhythm.
The passing score for the 1Z0-819日本語 exam is 68%, and the official registration fee is USD $245. If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience
Entry requirements can change, so confirm the latest conditions on the official exam page: https://education.oracle.com/product/pexam_1z0-819.
You can book the 1Z0-819日本語 exam through the official registration channels below:
Exam delivery: Online proctored or onsite at Pearson VUE test centers. Seats at popular test centers fill quickly, so schedule early once your preparation is on track.
Oracle recommends the following training options for Oracle Java SE 11 Developer (1Z0-819日本語版) candidates:
Pair any course with the 297 practice questions from Actual4Exams to measure how ready you really are before paying the exam fee.
Yes. A free PDF demo of the Oracle Java SE 11 Developer (1Z0-819日本語版) questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
If you take the corresponding 1Z0-819日本語 exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.
The official Oracle Java SE 11 Developer (1Z0-819日本語版) outline is organized into 10 domains. The first three are:
- JDBC Database Access — 5-8% of the exam
- Java Object-Oriented Approach — 15-20% of the exam
- Arrays and Collections — 12-18% of the exam
See the complete exam topics section above for the full outline and the weighting of every domain.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
Question 1
与えられた条件:
どちらが本当でしょうか？
A. コードはコンパイルされますが、結果は印刷されません。
B. コードはコンパイルされません。
C. コードは 25 を出力します。
D. コードは実行時に例外をスローします。
Question 2
与えられた条件:
MyPersistenceData クラスに java.io.Serializable インターフェイスを実装します。
どのメソッドをオーバーライドする必要がありますか?
A. writeExternalメソッド
B. readExternalメソッドとwriteExternalメソッド
C. 何もない
D. readExternalメソッド
Question 3
次のコードフラグメントがあるとします:
結果はどうなりましたか？
A. 2 4 6 B 10
B. 13 5 7 9
C. 1 3 5 7 9 11
D. 2 4 6 8
Question 4
与えられた条件:
結果はどうなりましたか？
A. 10
B. コンパイルに失敗します。
C. java.lang.IllegalArgumentException がスローされます。
D. 何もない
E. 0
Question 5
与えられた条件:
1 行目のどのステートメントがこのコードのコンパイルを可能にしますか?
A. 関数 f = n -> n * 2;
B. 関数<Integer, Integer> f = n -> n * 2;
C. 関数<int, int> f = n -> n * 2;
D. 関数<Integer> f = n -> n * 2;
E. 関数<int> f = n -> n * 2;
Solutions:
| Question 1 Answer: B | Question 2 Answer: B | Question 3 Answer: C | Question 4 Answer: B | Question 5 Answer: B |
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