Oracle 1z0-809 : Java SE 8 Programmer II
- Exam Code: 1z0-809
- Exam Name: Java SE 8 Programmer II
- Updated: Sep 11, 2026
- Q & A: 209 Questions and Answers
About Oracle 1z0-809 Exam
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Oracle 1z0-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use enumerated types - Use final keyword |
| Topic 2: Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Topic 3: Exceptions and Assertions | 8% | - Use try-with-resources - Use assertions - Create custom exceptions - Use try-catch, multi-catch, finally |
| Topic 4: Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Describe Stream interface and pipeline - Work with Optional class - Filter, map, and process streams |
| Topic 5: 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 6: Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
| Topic 7: JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Topic 8: 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 |
| Topic 9: Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| Topic 10: Java Class Design | 15% | - Create singleton and immutable classes - Use static keyword in blocks, variables, methods, classes - Override hashCode, equals, and toString methods - Implement polymorphism - Implement inheritance including visibility modifiers and composition - Implement encapsulation |
| Topic 11: Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
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