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Java 1Z0-809 Free Test is a test created to demonstrate all the features of our Java8 Professional Web Simulator. You will be able to access 25 full questions and will have 44 minutes to finish the test.
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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.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
- Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.
- Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
- 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.
- NIO.2, Path Interface, and Files Class.
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Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Exceptions and Assertions | - Error handling
|
| Java SE 8 Date/Time API | - Date and time handling
|
| Advanced Java Class Design | - Advanced object-oriented features
|
| Building Database Applications with JDBC | - Database connectivity
|
| Java Concurrency | - Multithreading
|
| Java Stream API | - Stream processing
|
| Generics and Collections | - Collections framework
|
| Java Class Design | - Object-oriented principles
|
| Lambda Built-in Functional Interfaces | - Functional programming
|
| Localization | - Internationalization
|
| Java File I/O | - NIO.2 API
|
| Java I/O Fundamentals | - Input and output
|
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