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1Z0-809 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our Oracle 1Z0-809 exam dumps will include the following topics:
- Lambda Built-in Functional Interfaces
- Use Java SE 8 Date/Time API
- Localization
- Java Stream API
- Advanced Java Class Design
- Java File I/O (NIO.2)
- Java I/O Fundamentals
- Generics and Collections
- Java Class Design
- Exceptions and Assertions
- Building Database Applications with JDBC
- Java Concurrency
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Oracle 1z0-809 Korean Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Sort and search collections - Use Collections Framework: List, Set, Map, Queue |
| Exceptions and Assertions | 8% | - Use assertions - Use try-with-resources - Use try-catch, multi-catch, finally - Create custom exceptions |
| Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement polymorphism - Implement encapsulation - Override hashCode, equals, and toString methods - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes |
| Localization | 5% | - Use Locale class - Work with resource bundles - Format numbers, dates, messages |
| JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
| Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Use method references |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Use Path, Files, FileSystem API - Stream operations on files |
| Advanced Java Class Design | 10% | - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use enumerated types - Use final keyword |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times |
| Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization |
| Java Stream API | 15% | - Filter, map, and process streams - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Work with Optional class |
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