Oracle 1z0-809 Korean Q&A - in .pdf
- Exam Code: 1z0-809 Korean
- Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
- Updated: Jul 22, 2026
- Q & A: 209 Questions and Answers
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- Exam Code: 1z0-809 Korean
- Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
- Updated: Jul 22, 2026
- Q & A: 209 Questions and Answers
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About Oracle Java SE 8 Programmer II (1z0-809 Korean Version) - 1z0-809 Korean Exam
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Oracle 1z0-809 Korean Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Sort and search collections |
| Topic 2: Lambda Expressions and Functional Interfaces | 15% | - Use method references - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Topic 3: Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Stream operations on files - Read/write with java.io API |
| Topic 4: Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| Topic 5: Java Class Design | 15% | - Implement encapsulation - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition - Implement polymorphism - Use static keyword in blocks, variables, methods, classes |
| Topic 6: JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Topic 7: Concurrency | 12% | - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Topic 8: Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Filter, map, and process streams - Describe Stream interface and pipeline - Work with Optional class |
| Topic 9: Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Create custom exceptions - Use try-with-resources - Use assertions |
| Topic 10: Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant |
| Topic 11: Advanced Java Class Design | 10% | - Use final keyword - Use enumerated types - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods |
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