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1Z0-809 Exam topics
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- Generics and Collections
- Java Class Design
- Advanced Java Class Design
- Use Java SE 8 Date/Time API
- Java I/O Fundamentals
- Java File I/O (NIO.2)
- Java Stream API
- Localization
- Building Database Applications with JDBC
- Exceptions and Assertions
- Java Concurrency
- Lambda Built-in Functional Interfaces
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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Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exceptions and Assertions | 8% | - Create custom exceptions - Use try-with-resources - Use try-catch, multi-catch, finally - Use assertions |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use Executors, Callable, Future - Use java.util.concurrent components |
| Generics and Collections | 15% | - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Sort and search collections |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Use Path, Files, FileSystem API - Stream operations on files |
| Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Override hashCode, equals, and toString methods - Implement encapsulation - Implement polymorphism - Create singleton and immutable classes |
| Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Work with Optional class - Filter, map, and process streams |
| JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
| Advanced Java Class Design | 10% | - Use enumerated types - Use abstract classes and methods - Use final keyword - Create inner classes: static, local, nested, anonymous |
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