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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.
- Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- NIO.2, Path Interface, and Files Class.
- 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.
- 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.
- Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
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.
Who should take the 1Z0-809 exam
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.
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Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Lambda Expressions and Functional Interfaces | 15% | - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references - Create and use lambda expressions - Use primitive and binary variants of functional interfaces |
| Generics and Collections | 15% | - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods - Sort and search collections |
| Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Create threads: Thread class, Runnable, ExecutorService |
| Java Class Design | 15% | - Override hashCode, equals, and toString methods - Use static keyword in blocks, variables, methods, classes - Create singleton and immutable classes - Implement polymorphism - Implement inheritance including visibility modifiers and composition - Implement encapsulation |
| Advanced Java Class Design | 10% | - Use final keyword - Use abstract classes and methods - Use enumerated types - Create inner classes: static, local, nested, anonymous |
| Exceptions and Assertions | 8% | - Use assertions - Create custom exceptions - Use try-with-resources - Use try-catch, multi-catch, finally |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Use Path, Files, FileSystem API - Read/write with java.io API |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant |
| Localization | 5% | - Work with resource bundles - Format numbers, dates, messages - Use Locale class |
| JDBC | 5% | - Connect to database - Process resultsets - Execute queries and updates |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Filter, map, and process streams - Work with Optional class - Use terminal operations: collect, reduce, count |
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