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What is the duration of the 1Z0-809 Exam
- Format: Multiple choices, multiple answers
- Length of Examination: 150 minutes
- Number of Questions: 85
- Passing Score: 65%
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Certification Path
Oracle Java SE 8 Programmer I can act as a prerequisite for this 1Z0-809 exam.
The Oracle 1Z0-809 exam is intended for those individuals who want to get the Oracle Certified Professional, Java SE 8 Programmer certification. The potential candidates for this test are those IT specialists who have some years of experience with Java SE 8 platform and hold the Oracle Certified Associate, Java SE 8 Programmer credential.
The Oracle 1Z0-809 is a 150-minute test with 85 questions, that are mainly of a multiple-choice format, but there may also be other types, such as drag and drop, simulations, or scenario-based. This certification exam is available in the English language and the passing score for it is 65%. However, you need to try to get more than that.
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Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use enumerated types - Use final keyword |
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Create and use lambda expressions |
| Java Stream API | 15% | - Work with Optional class - Filter, map, and process streams - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count |
| Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Create custom exceptions - Use try-with-resources - Use assertions |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future - Use java.util.concurrent components - Control thread lifecycle and synchronization |
| Generics and Collections | 15% | - Analyze type safety and type erasure - Sort and search collections - Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue |
| JDBC | 5% | - Connect to database - Execute queries and updates - Process resultsets |
| Java Class Design | 15% | - Implement inheritance including visibility modifiers and composition - Implement polymorphism - Create singleton and immutable classes - Override hashCode, equals, and toString methods - Implement encapsulation - Use static keyword in blocks, variables, methods, classes |
| Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
