Oracle 1z0-809日本語 Q&A - in .pdf
- Exam Code: 1z0-809日本語
- Exam Name: Java SE 8 Programmer II (1z0-809日本語版)
- Updated: Aug 27, 2026
- Q & A: 209 Questions and Answers
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- Exam Code: 1z0-809日本語
- Exam Name: Java SE 8 Programmer II (1z0-809日本語版)
- Updated: Aug 27, 2026
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Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Stream API | 15% | - Filter, map, and process streams - Work with Optional class - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count |
| Topic 2: Localization | 5% | - Work with resource bundles - Format numbers, dates, messages - Use Locale class |
| Topic 3: Concurrency | 12% | - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Topic 4: JDBC | 5% | - Process resultsets - Execute queries and updates - Connect to database |
| Topic 5: Java Class Design | 15% | - Implement inheritance including visibility modifiers and composition - Implement encapsulation - Create singleton and immutable classes - Override hashCode, equals, and toString methods - Implement polymorphism - Use static keyword in blocks, variables, methods, classes |
| Topic 6: Exceptions and Assertions | 8% | - Create custom exceptions - Use try-catch, multi-catch, finally - Use try-with-resources - Use assertions |
| Topic 7: Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue - Sort and search collections - Analyze type safety and type erasure |
| Topic 8: 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 |
| Topic 9: Advanced Java Class Design | 10% | - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use final keyword - Use enumerated types |
| Topic 10: Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Topic 11: Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant |
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