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Preparation Resources
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The Oracle 1Z0-809 exam is intended for those individuals who want to get the Oracle Certified Professional, Java SE 8 Programmer certification. The potential candidates for this test are those IT specialists who have some years of experience with Java SE 8 platform and hold the Oracle Certified Associate, Java SE 8 Programmer credential.
The Oracle 1Z0-809 is a 150-minute test with 85 questions, that are mainly of a multiple-choice format, but there may also be other types, such as drag and drop, simulations, or scenario-based. This certification exam is available in the English language and the passing score for it is 65%. However, you need to try to get more than that.
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How much 1Z0-809 Exam Cost
The price of the 1Z0-809 exam is $245 USD.
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Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Concurrency | 12% | - Use java.util.concurrent components - Control thread lifecycle and synchronization - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService |
| Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces |
| Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant |
| Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Stream operations on files - Read/write with java.io API |
| Java Stream API | 15% | - Work with Optional class - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Filter, map, and process streams |
| Exceptions and Assertions | 8% | - Use try-with-resources - Use assertions - Create custom exceptions - Use try-catch, multi-catch, finally |
| Localization | 5% | - Work with resource bundles - Format numbers, dates, messages - Use Locale class |
| Java Class Design | 15% | - Implement encapsulation - Use static keyword in blocks, variables, methods, classes - Implement polymorphism - Override hashCode, equals, and toString methods - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes |
| Advanced Java Class Design | 10% | - Use final keyword - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use enumerated types |
| Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Sort and search collections - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue |
| JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
