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