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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:
- 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.
- 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.
- Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
- 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.
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 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use final keyword - Use enumerated types - Use abstract classes and methods |
| 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 |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| Generics and Collections | 15% | - Sort and search collections - Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue - Analyze type safety and type erasure |
| Java Class Design | 15% | - Implement inheritance including visibility modifiers and composition - Override hashCode, equals, and toString methods - Implement encapsulation - Use static keyword in blocks, variables, methods, classes - Create singleton and immutable classes - Implement polymorphism |
| Java Stream API | 15% | - Filter, map, and process streams - Work with Optional class - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count |
| Concurrency | 12% | - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components - Create threads: Thread class, Runnable, ExecutorService |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times - Work with Period, Duration, time zones |
| Exceptions and Assertions | 8% | - Use try-with-resources - Create custom exceptions - Use try-catch, multi-catch, finally - Use assertions |
| JDBC | 5% | - Execute queries and updates - Connect to database - Process resultsets |
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