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Updated: Oct 01, 2026
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Oracle 1z0-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Generics and Collections | 15% | - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Sort and search collections - Use generic classes, interfaces, and methods |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Work with Optional class - Filter, map, and process streams |
| Concurrency | 12% | - Use java.util.concurrent components - Control thread lifecycle and synchronization - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
| Java Class Design | 15% | - Implement polymorphism - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes - Implement encapsulation - Override hashCode, equals, and toString methods - Use static keyword in blocks, variables, methods, classes |
| Advanced Java Class Design | 10% | - Use enumerated types - Use abstract classes and methods - Use final keyword - Create inner classes: static, local, nested, anonymous |
| Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times - Work with Period, Duration, time zones |
| Lambda Expressions and Functional Interfaces | 15% | - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use method references |
| Exceptions and Assertions | 8% | - Create custom exceptions - Use assertions - Use try-with-resources - Use try-catch, multi-catch, finally |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Use Path, Files, FileSystem API - Stream operations on files |
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