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Oracle Java SE 11 Developer (1Z0-819日本語版) follows objectives published by Oracle, so preparation should stay aligned with the official outline. Actual4dump organizes 297 1Z0-819日本語 practice questions around those exam areas to support focused review.
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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 |
| Related Certifications: | Oracle Certified Professional: Java SE 21 Developer Oracle Certified Professional: Java SE 17 Developer |
| Exam Price: | USD $245 |
| Real Exam Qty: | 50 |
| Available Languages: | English, Chinese (Traditional, Taiwan only) |
| Exam Format: | Multiple Select, Multiple Choice |
| Certificate Validity Period: | No expiration |
| Exam Duration: | 90 minutes |
| Passing Score: | 68% |
| Recommended Training: | Java SE 11 Developer Training |
| Exam Registration: | Oracle University Pearson VUE |
| 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日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 |
| Topic 2: Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| Topic 3: 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 |
| Topic 4: JDBC Database Access | 5-8% | - Connect to databases, execute queries and updates - Process result sets, manage transactions and resources |
| Topic 5: Java I/O and NIO.2 | 8-12% | - Implement serialization and deserialization - Manage files, directories and file attributes with java.nio.file API - Read and write data using streams, readers, writers and channels |
| Topic 6: Lambda Expressions and Streams | 12-18% | - Create and use stream pipelines, including intermediate and terminal operations - Define and use functional interfaces and lambda expressions - Use Optional class and primitive type streams |
| Topic 7: Java Object-Oriented Approach | 15-20% | - Declare and instantiate classes, interfaces, abstract classes and nested classes - Use local variable type inference - Overload and override methods, use constructors and initializers - Apply encapsulation, inheritance, polymorphism and abstraction |
| Topic 8: 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 |
| Topic 9: 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 |
| Topic 10: Arrays and Collections | 12-18% | - Sort and search collections and arrays - Use generics, wildcards and diamond notation - Create and manipulate arrays, lists, sets, maps, queues and deques |
Oracle Java SE 11 Developer (1Z0-819日本語版): Frequently Asked Questions
The 1Z0-819日本語 exam leads to the Oracle Certified Professional: Java SE 11 Developer certification from Oracle. It is positioned at the Professional level. The exam validates the knowledge and skills expected of candidates preparing for Oracle Java SE 11 Developer (1Z0-819日本語版).
Related certifications include:
- Oracle Certified Professional: Java SE 17 Developer
- Oracle Certified Professional: Java SE 21 Developer
The 1Z0-819日本語 exam includes 50 questions and allows 90 minutes. Before test day, divide the available time by the number of questions in a timed practice set to establish a steady per-question pace. If a difficult item starts consuming too much time, mark it for review and move forward instead of losing momentum. A full timed practice session can help you decide when to move on, when to return, and how much buffer to reserve for a final check.
The passing score for 1Z0-819日本語 is 68%, and the official exam fee is USD $245. Because a retake requires paying the exam fee again, use timed practice results as a readiness check before scheduling your next attempt. If your performance remains inconsistent, continue reviewing weak domains and repeat a timed session before booking the exam.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience
Eligibility rules can change, so confirm the current requirements on the official exam page before registering.
You can register through the official channels listed below:
The available exam delivery method is Online proctored or onsite at Pearson VUE test centers.
The official training options include:
After reviewing the recommended training, reinforce what you learned with Actual4dump's 297 practice questions for 1Z0-819日本語.
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The current 1Z0-819日本語 outline is organized into 10 top-level domains. The first listed areas include:
- Secure Coding and Localization (5-8%)
- Exception Handling and Assertions (8-12%)
- Java Object-Oriented Approach (15-20%)
Review the Exam Topics section above for the complete outline and any nested subtopics.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
与えられた条件:
結果はどうなりましたか?
- A. 1.99、2.99
- B. 1.99,2.99,0.0
- C. 1.99,2.99,0
- D. コンパイルに失敗しました。
Correct Answer: B 🗳️
与えられた条件:
そして
結果はどうなりましたか?
- A. 実行時に NullPointerException がスローされます。
- B. 1
1
1 - C. コンパイルに失敗しました。
- D. 実行時に ClassCastException がスローされます。
- E. 1
ヌル
ヌル
Correct Answer: C 🗳️
Explanation: Only visible for Actual4dump members. You can sign-up / login (it's free).
ある企業には、sales-3.10.jar と clients-10.2.jar という 2 つの Java 8 jar ファイルを含む既存の Java アプリがあります。
jar ファイル、sales -8, 10, jar は clients -10.2 jar 内のパッケージを参照しますが、clients-10.2 jar は sales -8.10, jar 内のパッケージを参照しません。
clients-10.2.jar をモジュール化することを決定しました。
どの module-info. Java ファイルが新しいライブラリ バージョン clients-10.3 jar で機能しますか?
- A.

- B.

- C.

- D.

Correct Answer: D 🗳️
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
- B. -3
- C. 1
- D. -1
Correct Answer: A 🗳️
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<Integer> f = n -> n * 2;
- B. 関数<Integer, Integer> f = n -> n * 2;
- C. 関数 f = n -> n * 2;
- D. 関数<int> f = n -> n * 2;
- E. 関数<int, int> f = n -> n * 2;
Correct Answer: B 🗳️
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