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Last Updated: Aug 26, 2026
No. of Questions: 209 Questions & Answers with Testing Engine
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What is the duration of the 1Z0-809 Exam
- Format: Multiple choices, multiple answers
- Number of Questions: 85
- Passing Score: 65%
- Length of Examination: 150 minutes
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1Z0-809 Exam topics
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- Lambda Built-in Functional Interfaces
- Exceptions and Assertions
- Localization
- Building Database Applications with JDBC
- Java Concurrency
- Advanced Java Class Design
- Java Stream API
- Generics and Collections
- Java File I/O (NIO.2)
- Use Java SE 8 Date/Time API
- Java I/O Fundamentals
- Java Class Design
Oracle 1z0-809日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Stream API | 15% | - Describe Stream interface and pipeline - Filter, map, and process streams - Use terminal operations: collect, reduce, count - Work with Optional class |
| Topic 2: 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 3: Java Class Design | 15% | - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement encapsulation - Implement polymorphism - Implement inheritance including visibility modifiers and composition - Use static keyword in blocks, variables, methods, classes |
| Topic 4: JDBC | 5% | - Process resultsets - Connect to database - Execute queries and updates |
| Topic 5: Advanced Java Class Design | 10% | - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use enumerated types - Use final keyword |
| Topic 6: Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| Topic 7: Concurrency | 12% | - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components - Create threads: Thread class, Runnable, ExecutorService |
| Topic 8: 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 |
| Topic 9: Localization | 5% | - Use Locale class - Work with resource bundles - Format numbers, dates, messages |
| Topic 10: Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use assertions - Create custom exceptions - Use try-with-resources |
| Topic 11: Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant |
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