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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 |
| Topic 2: Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Topic 3: 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 4: JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Topic 5: Java Object-Oriented Approach | 15-20% | - Use local variable type inference - Declare and instantiate classes, interfaces, abstract classes and nested classes - Apply encapsulation, inheritance, polymorphism and abstraction - Overload and override methods, use constructors and initializers |
| Topic 6: 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 7: Exception Handling and Assertions | 8-12% | - Use try-catch-finally, try-with-resources, throw and throws - Use assertions appropriately - Create custom exceptions and use standard exceptions |
| Topic 8: 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 9: 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 |
| Topic 10: Lambda Expressions and Streams | 12-18% | - Use Optional class and primitive type streams - Define and use functional interfaces and lambda expressions - Create and use stream pipelines, including intermediate and terminal operations |
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The latest exam information lists 50 questions for the 1Z0-819日本語 exam, to be completed within 90 minutes minutes. Knowing the format cold is half the battle — timed practice handles the other half.
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Oracle sets the following prerequisites for the Oracle Java SE 11 Developer (1Z0-819日本語版): No mandatory prerequisites; recommended: solid Java programming knowledge and development experience.
Check the current requirements on the official certification page before scheduling.
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As of the latest information, the 1Z0-819日本語 exam's passing score is 68% and the registration fee is USD $245. Oracle can adjust either figure, so verify both on the official site before you book.
組織では、クラウド顧客にmlib.jarを提供しています。mlib.jarのコードクリーンアッププロジェクトに取り組んでいる際、顧客が次のようなメソッドを使用しているのを目にしました。
顧客がアクセス可能な方法の要件を満たすには、この方法にどのようなセキュリティ対策を追加する必要がありますか?
Correct Answer: C 🗳️
ユーザーの資格情報が正しいと仮定すると、どの式によって接続が作成されますか?
Correct Answer: C 🗳️
Customer テーブルの構造は次のとおりです。
* ID番号主キー
* 名前テキスト Null可能
与えられたコードフラグメント:
14 行目に挿入されたどのステートメントが NAME 列を NULL 値に設定しますか?
Correct Answer: C 🗳️
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？
Correct Answer: D 🗳️
この要件を考慮すると、
モジュール ビークルはモジュール パーツに依存し、その com.vehicle パッケージを他のすべてのモジュールで使用できるようにします。
どの module-info.java 宣言が要件を満たしていますか?
Correct Answer: B 🗳️
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