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Last Updated: Aug 14, 2026
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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
What is the duration of the 1Z0-809 Exam
- Passing Score: 65%
- Format: Multiple choices, multiple answers
- Number of Questions: 85
- Length of Examination: 150 minutes
Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java I/O and NIO.2 | 8% | - Stream operations on files - Use Path, Files, FileSystem API - Read/write with java.io API |
| Java Stream API | 15% | - Filter, map, and process streams - Work with Optional class - Use terminal operations: collect, reduce, count - Describe Stream interface and pipeline |
| Java Class Design | 15% | - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement polymorphism - Use static keyword in blocks, variables, methods, classes - Implement encapsulation - Implement inheritance including visibility modifiers and composition |
| Concurrency | 12% | - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Use java.util.concurrent components - Control thread lifecycle and synchronization |
| Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
| Generics and Collections | 15% | - Sort and search collections - Use Collections Framework: List, Set, Map, Queue - Analyze type safety and type erasure - Use generic classes, interfaces, and methods |
| JDBC | 5% | - Execute queries and updates - Connect to database - Process resultsets |
| Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use method references - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Advanced Java Class Design | 10% | - Use enumerated types - Use final keyword - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods |
| Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
| Exceptions and Assertions | 8% | - Create custom exceptions - Use assertions - Use try-catch, multi-catch, finally - Use try-with-resources |
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