PDF Version DemoWho should take the Java SE 11 Developer Exam Number: 1Z0-819
This exam helps students to understand the basic relational database concepts. Moreover, it will teach the students about data modeling concepts, building Entity Relationship Diagrams (ERDs), and mapping ERDs. Moreover, with this project-based learning techniques, students will be able to create and work with projects to design, implement, and demonstrate a database solution for a business or organization.
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To stay current, candidates have to re-certify themselves with the latest version of the exam. Oracle Cloud Certifications include various titles with levels that are Oracle Certified Associate, Specialist, and Professional. Moreover, the Oracle Cloud Certifications are updated continuously throughout the year for keeping current with major product and service releases and re-released on an annual basis with a new title.
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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Define and use fields and methods, including instance, static and overloaded methods
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Handle file system objects using java.nio.file API
- Implement serialization and deserialization techniques on Java objects
- Initialize objects and their members using instance and static initialiser statements and constructors
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Create, apply, and process annotations
- Create and use enumerations
- Understand variable scopes, apply encapsulation and make objects immutable
- Read and write console and file data using I/O Streams
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Create and use subclasses and superclasses, including abstract classes
- Declare, use, and expose modules, including the use of services
- Deploy and execute modular applications, including automatic modules
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exception Handling and Assertions | 8-12% | - Create custom exceptions and use standard exceptions - Use assertions appropriately - Use try-catch-finally, try-with-resources, throw and throws |
| Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Java I/O and NIO.2 | 8-12% | - Read and write data using streams, readers, writers and channels - Implement serialization and deserialization - Manage files, directories and file attributes with java.nio.file API |
| 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 |
| Working with Java Data Types | 10-15% | - Manipulate numeric values and formatting - Handle text using String, StringBuilder and StringBuffer classes - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting |
| Java Object-Oriented Approach | 15-20% | - Declare and instantiate classes, interfaces, abstract classes and nested classes - Use local variable type inference - Apply encapsulation, inheritance, polymorphism and abstraction - Overload and override methods, use constructors and initializers |
| 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 |
| Lambda Expressions and Streams | 12-18% | - Create and use stream pipelines, including intermediate and terminal operations - Use Optional class and primitive type streams - Define and use functional interfaces and lambda expressions |
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| 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 |
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
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?
- A.
- B.
- C.
- D.
- E.
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<int, int> f = n -> n * 2;
- D. 関数<int> f = n -> n * 2;
- E. 関数 f = n -> n * 2;
Correct Answer: B 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
与えられた条件:
これらのオブジェクトの安全なシリアル化はどれですか? (2 つ選択してください。)
- A. serialPersistentFields 配列フィールドを定義します。
- B. フィールドを一時的として宣言します。
- C. インスタンスをシリアル プロキシに置き換えるには、writeReplace ではなく readResolve のみを実装します。
- D. クラスを抽象化します。
- E. インスタンスをシリアル プロキシに置き換えるには、readResolve ではなく writeReplace のみを実装します。
Correct Answer: A,C 🗳️
与えられた条件:
1 行目に相当する文はどれですか?
- A. double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce(bo).orElse(0.0);
- B. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).reduce(starts, bo);
- C. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).sum;
- D. double totalSalary = list.stream().map(e -> e.getSalary() * ratio).reduce(bo).ifPresent(p -> p.doubleValue());
Correct Answer: A 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
与えられた条件:
1 行目に独立して挿入された場合、どの 2 つのメソッド実装が正しいですか? (2 つ選択してください。)
- A. オプションE
- B. オプションC
- C. オプションD
- D. オプションB
- E. オプションA
Correct Answer: A,E 🗳️
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