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Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use java.util.concurrent components - Use Executors, Callable, Future - Control thread lifecycle and synchronization |
| JDBC | 5% | - Process resultsets - Execute queries and updates - Connect to database |
| Lambda Expressions and Functional Interfaces | 15% | - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references - Create and use lambda expressions |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times |
| Advanced Java Class Design | 10% | - Use abstract classes and methods - Use enumerated types - Use final keyword - Create inner classes: static, local, nested, anonymous |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Filter, map, and process streams - Work with Optional class - Use terminal operations: collect, reduce, count |
| Generics and Collections | 15% | - Sort and search collections - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods - Analyze type safety and type erasure |
| Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition - Implement polymorphism - Implement encapsulation - Override hashCode, equals, and toString methods |
| Exceptions and Assertions | 8% | - Use try-with-resources - Create custom exceptions - Use assertions - Use try-catch, multi-catch, finally |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| Localization | 5% | - Use Locale class - Format numbers, dates, messages - Work with resource bundles |
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