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Real Oracle 1z1-809 practice exam questions for easy pass!
Last Updated: Sep 14, 2026
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Oracle Java SE 8 Programmer I can act as a prerequisite for this 1Z0-809 exam.
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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.
What is the duration of the 1Z0-809 Exam
- Number of Questions: 85
- Format: Multiple choices, multiple answers
- Passing Score: 65%
- Length of Examination: 150 minutes
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| Topic 2: Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
| Topic 3: JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Topic 4: Lambda Expressions and Functional Interfaces | 15% | - Use method references - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Topic 5: Concurrency | 12% | - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Topic 6: Generics and Collections | 15% | - Sort and search collections - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue |
| Topic 7: Advanced Java Class Design | 10% | - Use final keyword - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use enumerated types |
| Topic 8: Java Stream API | 15% | - Work with Optional class - Use terminal operations: collect, reduce, count - Filter, map, and process streams - Describe Stream interface and pipeline |
| Topic 9: Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
| Topic 10: Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes - Implement encapsulation - Override hashCode, equals, and toString methods - Implement polymorphism |
| Topic 11: Exceptions and Assertions | 8% | - Use try-with-resources - Use assertions - Use try-catch, multi-catch, finally - Create custom exceptions |
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