Exam Name: Java SE 11 Developer (1Z0-819日本語版)
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 2: Arrays and Collections | 12-18% | - Use generics, wildcards and diamond notation - Sort and search collections and arrays - Create and manipulate arrays, lists, sets, maps, queues and deques |
| Topic 3: 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 |
| Topic 4: 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 |
| Topic 5: Java I/O and NIO.2 | 8-12% | - Implement serialization and deserialization - Read and write data using streams, readers, writers and channels - Manage files, directories and file attributes with java.nio.file API |
| Topic 6: 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 |
| Topic 7: JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Topic 8: Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Topic 9: 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 |
| Topic 10: Concurrency | 8-12% | - Create and manage threads, use ExecutorService, Callable and Future - Use parallel streams and CompletableFuture - Use synchronization, locks, atomic variables and concurrent collections |
Oracle Java SE 11 Developer (1Z0-819日本語版) Exam FAQ — Complete Answers
The Oracle Java SE 11 Developer (1Z0-819日本語版) blueprint spans 10 domains — including Java I/O and NIO.2 (8-12%), Arrays and Collections (12-18%), Exception Handling and Assertions (8-12%). Weightings show where the exam concentrates; the full outline above covers every subtopic.
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USD $245 per attempt, 68% to pass. Every retake bills the full fee, so make practice thorough first — the 297 practice questions for the 1Z0-819日本語 exam at Lead1Pass are the affordable rehearsal.
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Yes:
Training covers theory; interactive practice covers readiness. After any course, rehearse with the 297 practice questions for the Oracle Java SE 11 Developer (1Z0-819日本語版) — every answer expert-verified.
The Oracle Java SE 11 Developer (1Z0-819日本語版) is Oracle's certification exam for Oracle Certified Professional: Java SE 11 Developer, at the Professional level. It demonstrates verified, job-relevant capability to employers. Related credentials include Oracle Certified Professional: Java SE 17 Developer, Oracle Certified Professional: Java SE 21 Developer.
90 minutes for 50 questions. Rehearse the format interactively: the Lead1Pass online engine recreates the test atmosphere, so pacing is trained before it counts.
Yes — a free Oracle Java SE 11 Developer (1Z0-819日本語版) 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.
No mandatory prerequisites; recommended: solid Java programming knowledge and development experience Eligibility rules change from time to time, so confirm the current requirements on the official page (official 1Z0-819日本語 exam page) before booking.
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. 別のクラス#メソッドA() あるクラス#メソッドA()
- B. コンパイルに失敗しました。
- C. 別のクラス#メソッドA()別のクラス#メソッドA()
- D. SomeClass#methodA()SomeClass#methodA()
- E. 実行時に ClassCastException がスローされます。
- F. SomeClass#methodA()AnotherClass#methodA()
Correct Answer: B 🗳️
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与えられた条件:
どちらの記述が正しいでしょうか?
- A. res2 は final として宣言する必要があるため、コードはコンパイルに失敗します。
- B. コードは正常にコンパイルされました。
- C. MyResource は Closeable を実装する必要があるため、コードはコンパイルに失敗します。
- D. try-try-resource では、MyResource r1= res1; MyResource r2 = res2; のような変数宣言が必要であるため、コードはコンパイルに失敗します。
Correct Answer: B 🗳️
JDK をモジュール化する理由を説明しているものはどれですか (2 つ選択してください)。
- A. 実装の詳細を公開しやすくなる
- B. アプリケーションの堅牢性が向上します
- C. Java言語を理解しやすくなる
- D. セキュリティと保守性が向上します
- E. アプリケーションモジュールとJDKモジュールをリンクするカスタムランタイムの構築が容易になります
Correct Answer: B,D 🗳️
与えられた条件:
Point クラスをコンパイルする JsonField アノテーションの正しい定義は何ですか?
- A.
- B.
- C.
Correct Answer: B 🗳️
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