Oracle : 1Z0-819日本語 Questions & Answers
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Who 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.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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:
- Read and write console and file data using I/O Streams
- Declare, use, and expose modules, including the use of services
- Understand variable scopes, apply encapsulation and make objects immutable
- Create, apply, and process annotations
- Create and use enumerations
- Handle file system objects using java.nio.file API
- Define and use fields and methods, including instance, static and overloaded methods
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Initialize objects and their members using instance and static initialiser statements and constructors
- Implement serialization and deserialization techniques on Java objects
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Deploy and execute modular applications, including automatic modules
- Create and use subclasses and superclasses, including abstract classes
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Java Platform Module System | 8-12% | - Define modules, module declarations, requires, exports, opens, uses and provides - Compile, package and run modular applications - Use automatic modules and unnamed modules |
| Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| 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 |
| 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 |
| Java Object-Oriented Approach | 15-20% | - Apply encapsulation, inheritance, polymorphism and abstraction - Use local variable type inference - Overload and override methods, use constructors and initializers - Declare and instantiate classes, interfaces, abstract classes and nested classes |
| 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 |
| 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 |
| 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 |
| 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 |
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