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For more info visit: Oracle Java8 1Z0-809 Exam Reference
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Class Design | 15% | - Implement polymorphism - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition - Use static keyword in blocks, variables, methods, classes - Implement encapsulation |
| Topic 2: Exceptions and Assertions | 8% | - Create custom exceptions - Use try-catch, multi-catch, finally - Use assertions - Use try-with-resources |
| Topic 3: Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use java.util.concurrent components - Use Executors, Callable, Future - Control thread lifecycle and synchronization |
| Topic 4: Advanced Java Class Design | 10% | - Use final keyword - Create inner classes: static, local, nested, anonymous - Use enumerated types - Use abstract classes and methods |
| Topic 5: Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
| Topic 6: Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references |
| Topic 7: JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Topic 8: Localization | 5% | - Work with resource bundles - Format numbers, dates, messages - Use Locale class |
| Topic 9: Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Sort and search collections |
| Topic 10: Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| Topic 11: Java Stream API | 15% | - Work with Optional class - Describe Stream interface and pipeline - Filter, map, and process streams - Use terminal operations: collect, reduce, count |
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