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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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Oracle Java SE 8 Programmer II 1Z0-809 Exam
Oracle Java SE 8 Programmer II 1Z0-809 Exam is related to Oracle Java SE and credits toward Oracle Certified Professional and Java SE 8 Programmer Certification. This exam is part second of the Java SE 8 Programmer. This exam validates the ability to develop code that uses the static keyword on blocks, variables, methods and chases, implements and intends interfaces and use the at override annotation, search for data by using search methods of the stream classes, save results to a collection. It also validates the ability to create and manage date-based and time-based events including a combination of date and time int a single object. Java EE Developers, Web Developers and Java Developers usually hold or pursue this certification and you can expect the same job role after completion of this certification.
Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement encapsulation - Override hashCode, equals, and toString methods - Implement inheritance including visibility modifiers and composition - Implement polymorphism - Create singleton and immutable classes |
| JDBC | 5% | - Connect to database - Process resultsets - Execute queries and updates |
| Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Work with Optional class - Filter, map, and process streams - Describe Stream interface and pipeline |
| Exceptions and Assertions | 8% | - Use assertions - Use try-catch, multi-catch, finally - Use try-with-resources - Create custom exceptions |
| Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
| Generics and Collections | 15% | - Use Collections Framework: List, Set, Map, Queue - Analyze type safety and type erasure - Use generic classes, interfaces, and methods - Sort and search collections |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Use Path, Files, FileSystem API - Read/write with java.io API |
| Advanced Java Class Design | 10% | - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use final keyword - Use enumerated types |
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Use primitive and binary variants of functional interfaces - Create and use lambda expressions - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use Executors, Callable, Future - Use java.util.concurrent components |
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