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Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809
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Oracle 1Z0-809 Exam Reference
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For more info visit: Oracle Java8 1Z0-809 Exam Reference
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Given that this exam is at the professional level of certification, candidates have a large amount of work to do. Therefore, the first thing that is recommended is to thoroughly review the complete list of topics available on the official exam page, which includes:
- Stream API. It means the code development that uses optional class, Stream data, and calculation methods in addition to sorting a collection using Stream API.
- NIO.2, Path Interface, and Files Class.
- Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.
- Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- Localization. In particular how to read and set the locale by using the Locale object, to create and read a Properties file, and to build a recourse bundle for each locale.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
- Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
To apply for this Oracle certification test, you should first pay $245 for a voucher. After that, go to Pearson VUE and log into your account. Enter the exam code, which should be 1Z0-809, and follow the instructions that will pop up.
Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Objectives |
| Java I/O Fundamentals | - Input and output
- 1. Use serialization
- 2. Read and write files
- 3. Use BufferedReader and BufferedWriter
|
| Advanced Java Class Design | - Advanced object-oriented features
- 1. Develop Lambda expressions
- 2. Create nested and inner classes
- 3. Use enum types
- 4. Use the final keyword
- 5. Use abstract classes and interfaces
|
| Exceptions and Assertions | - Error handling
- 1. Use assertions
- 2. Use try-catch and try-with-resources
- 3. Create custom exceptions
|
| Building Database Applications with JDBC | - Database connectivity
- 1. Use JDBC drivers and connections
- 2. Execute SQL statements
- 3. Process ResultSet data
|
| Java Stream API | - Stream processing
- 1. Use Optional
- 2. Use map, flatMap, and peek
- 3. Collect and group stream results
- 4. Use findFirst, findAny, and match methods
- 5. Sort and filter data using streams
|
| Generics and Collections | - Collections framework
- 1. Use Comparator and Comparable
- 2. Use ArrayList, TreeSet, TreeMap, and ArrayDeque
- 3. Iterate collections with Streams and forEach
- 4. Create and use generic classes
|
| Lambda Built-in Functional Interfaces | - Functional programming
- 1. Use Predicate, Consumer, Function, and Supplier
- 2. Use UnaryOperator and BinaryOperator
- 3. Use primitive functional interfaces
|
| Java Class Design | - Object-oriented principles
- 1. Implement inheritance and polymorphism
- 2. Implement encapsulation
- 3. Use static variables, methods, and initialization blocks
- 4. Override equals, hashCode, and toString
- 5. Create singleton and immutable classes
|
| Java SE 8 Date/Time API | - Date and time handling
- 1. Format and parse date values
- 2. Use Period and Duration
- 3. Use LocalDate, LocalTime, and LocalDateTime
|
| Java File I/O | - NIO.2 API
- 1. Traverse directory structures
- 2. Read file attributes
- 3. Use Path and Files classes
|
| Java Concurrency | - Multithreading
- 1. Use concurrent collections
- 2. Use ExecutorService
- 3. Create and manage threads
- 4. Use synchronized blocks and locks
|
| Localization | - Internationalization
- 1. Use Locale and ResourceBundle
- 2. Format dates and numbers
- 3. Handle localization properties
|