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Last Updated: Aug 11, 2026
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Given that this exam is at the professional level of certification, candidates have a large amount of work to do. Therefore, the first thing that is recommended is to thoroughly review the complete list of topics available on the official exam page, which includes:
- Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.
- NIO.2, Path Interface, and Files Class.
- Localization. In particular how to read and set the locale by using the Locale object, to create and read a Properties file, and to build a recourse bundle for each locale.
- Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
- Stream API. It means the code development that uses optional class, Stream data, and calculation methods in addition to sorting a collection using Stream API.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
To apply for this Oracle certification test, you should first pay $245 for a voucher. After that, go to Pearson VUE and log into your account. Enter the exam code, which should be 1Z0-809, and follow the instructions that will pop up.
How to book the 1Z0-809 Exam
These are following steps for registering the Oracle 1Z0-809 exam. Step 1: Visit to Pearson Exam Registration Step 2: Signup/Login to Pearson VUE account Step 3: Search for Oracle 1Z0-809 Exam Certifications Exam Step 4: Select Date, time and confirm with the payment method
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Implement polymorphism - Implement encapsulation - Override hashCode, equals, and toString methods - Create singleton and immutable classes |
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Create and use lambda expressions |
| Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use final keyword - Use abstract classes and methods - Use enumerated types |
| Java Stream API | 15% | - Work with Optional class - Use terminal operations: collect, reduce, count - Filter, map, and process streams - Describe Stream interface and pipeline |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| JDBC | 5% | - Connect to database - Process resultsets - Execute queries and updates |
| Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use assertions - Create custom exceptions - Use try-with-resources |
| Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Create threads: Thread class, Runnable, ExecutorService |
| Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Sort and search collections - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue |
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