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To prepare for the Oracle 1z0-809 Exam, candidates must have a solid understanding of Java programming concepts and syntax. They must also have hands-on experience working with Java APIs and be familiar with various Java development tools. Additionally, candidates can take advantage of Oracle's official study materials, such as books, practice exams, and online training courses, to prepare for the exam. Passing the Oracle 1z0-809 Exam demonstrates that a candidate has advanced Java programming skills, making them a valuable asset to any organization that works with Java technology.
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Oracle 1z0-809 Korean Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times |
| JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Advanced Java Class Design | 10% | - Use abstract classes and methods - Use enumerated types - Create inner classes: static, local, nested, anonymous - Use final keyword |
| Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use try-with-resources - Use assertions - Create custom exceptions |
| Lambda Expressions and Functional Interfaces | 15% | - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Use method references - Create and use lambda expressions |
| Concurrency | 12% | - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| 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 |
| Java Class Design | 15% | - Implement polymorphism - Use static keyword in blocks, variables, methods, classes - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition - Override hashCode, equals, and toString methods - Implement encapsulation |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Filter, map, and process streams - Work with Optional class |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
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