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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:

SectionWeightObjectives
Topic 1: Concurrency8-12%- 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 Localization5-8%- Apply secure coding practices, input validation and data protection
- Use Locale, ResourceBundle and formatting APIs for internationalization
Topic 3: Working with Java Data Types10-15%- 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 Access5-8%- Connect to databases, execute queries and updates
- Process result sets, manage transactions and resources
Topic 5: Java I/O and NIO.28-12%- 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 Streams12-18%- 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 Approach15-20%- 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 System8-12%- 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 Assertions8-12%- Use assertions appropriately
- Use try-catch-finally, try-with-resources, throw and throws
- Create custom exceptions and use standard exceptions
Topic 10: Arrays and Collections12-18%- 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.

Yes. Actual4dump provides a free PDF demo so you can review the format, question style, and answer quality before placing an order. Your purchase includes 365 days of free updates, and expired products can receive continued update service at a 50% discount.

If you purchase the corresponding 1Z0-819日本語 preparation material and do not pass that exam within 60 days of purchase, you may apply for a full refund under the 100% Money Back Guarantee. The request requires a scanned exam enrollment slip and the official Score Report PDF, submitted within two days after the exam. Eligible requests are processed within seven days.

Claims are not eligible if the exam was taken within three days of purchase, the product was downloaded without an exam attempt, the order was free or expired, or the candidate name does not match the payer name. If you prefer an exchange instead of a refund, you can receive two free products of equal value while keeping the update service for your original purchase.

Delivery is immediate after checkout. The download is available right away, and the product is also sent to your email within one minute. Contact customer support if it has not arrived within two hours. You may install the product on an unlimited number of computers.

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。
Reveal Solution  Discussion  0

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
Reveal Solution  Discussion  0

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.
Reveal Solution  Discussion  0

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
Reveal Solution  Discussion  0

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;
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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