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Java 1Z0-809 Free Test is a test created to demonstrate all the features of our Java8 Professional Web Simulator. You will be able to access 25 full questions and will have 44 minutes to finish the test.
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For more info visit: Oracle Java8 1Z0-809 Exam Reference
Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Java Class Design | 10% | - Use enumerated types - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use final keyword |
| Topic 2: Localization | 5% | - Format numbers, dates, messages - Work with resource bundles - Use Locale class |
| Topic 3: Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Topic 4: Generics and Collections | 15% | - Sort and search collections - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods |
| Topic 5: Java Class Design | 15% | - Implement encapsulation - Implement polymorphism - Override hashCode, equals, and toString methods - Use static keyword in blocks, variables, methods, classes - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition |
| Topic 6: Lambda Expressions and Functional Interfaces | 15% | - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Create and use lambda expressions |
| Topic 7: Exceptions and Assertions | 8% | - Use assertions - Use try-catch, multi-catch, finally - Create custom exceptions - Use try-with-resources |
| Topic 8: JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
| Topic 9: Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization |
| Topic 10: Java Stream API | 15% | - Work with Optional class - Filter, map, and process streams - Use terminal operations: collect, reduce, count - Describe Stream interface and pipeline |
| Topic 11: Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
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