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Last Updated: Jul 21, 2026
No. of Questions: 209 Questions & Answers with Testing Engine
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The Oracle Java SE 8 Programmer II 1Z0-809 Exam certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled as an Oracle Certified Java Programmer. If a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The Oracle Java SE 8 Programmer II 1Z0-809 Exam certification provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass Oracle Java SE 8 Programmer II 1Z0-809 Exam then he should take this exam.
1Z0-809 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our Oracle 1Z0-809 exam dumps will include the following topics:
- Java File I/O (NIO.2)
- Java Class Design
- Building Database Applications with JDBC
- Java Concurrency
- Advanced Java Class Design
- Generics and Collections
- Java Stream API
- Lambda Built-in Functional Interfaces
- Exceptions and Assertions
- Use Java SE 8 Date/Time API
- Java I/O Fundamentals
- Localization
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Stream API | 15% | - Filter, map, and process streams - Use terminal operations: collect, reduce, count - Work with Optional class - Describe Stream interface and pipeline |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times |
| Advanced Java Class Design | 10% | - Use enumerated types - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use final keyword |
| 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 |
| Generics and Collections | 15% | - Analyze type safety and type erasure - Use generic classes, interfaces, and methods - Sort and search collections - Use Collections Framework: List, Set, Map, Queue |
| JDBC | 5% | - Connect to database - Process resultsets - Execute queries and updates |
| Java Class Design | 15% | - Create singleton and immutable classes - Use static keyword in blocks, variables, methods, classes - Implement polymorphism - Override hashCode, equals, and toString methods - Implement inheritance including visibility modifiers and composition - Implement encapsulation |
| Exceptions and Assertions | 8% | - Use try-with-resources - Create custom exceptions - Use try-catch, multi-catch, finally - Use assertions |
| Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
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