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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:
- Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
- NIO.2, Path Interface, and Files Class.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
- Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
- Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- 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.
- 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.
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.
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Oracle Java SE 8 Programmer II 1Z0-809 Exam
Oracle Java SE 8 Programmer II 1Z0-809 Exam is related to Oracle Java SE and credits toward Oracle Certified Professional and Java SE 8 Programmer Certification. This exam is part second of the Java SE 8 Programmer. This exam validates the ability to develop code that uses the static keyword on blocks, variables, methods and chases, implements and intends interfaces and use the at override annotation, search for data by using search methods of the stream classes, save results to a collection. It also validates the ability to create and manage date-based and time-based events including a combination of date and time int a single object. Java EE Developers, Web Developers and Java Developers usually hold or pursue this certification and you can expect the same job role after completion of this certification.
Oracle 1z0-809 Korean Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Create and use lambda expressions - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces |
| Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant |
| 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 |
| Java Class Design | 15% | - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes - Implement polymorphism - Use static keyword in blocks, variables, methods, classes - Implement encapsulation - Override hashCode, equals, and toString methods |
| 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 I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| JDBC | 5% | - Connect to database - Execute queries and updates - Process resultsets |
| Concurrency | 12% | - Use Executors, Callable, Future - Use java.util.concurrent components - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization |
| Exceptions and Assertions | 8% | - Use assertions - Use try-with-resources - Create custom exceptions - Use try-catch, multi-catch, finally |
| Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use enumerated types - Use abstract classes and methods - Use final keyword |
| Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
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