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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.
- I/O Fundamentals. It means the skill of reading and writing data from the console.
- 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.
- NIO.2, Path Interface, and Files Class.
- 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.
- Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.
- 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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Java 1Z0-809 Free Test is a test created to demonstrate all the features of our Java8 Professional Web Simulator. You will be able to access 25 full questions and will have 44 minutes to finish the test.
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For more info visit: Oracle Java8 1Z0-809 Exam Reference
What is the duration of the 1Z0-809 Exam
- Number of Questions: 85
- Format: Multiple choices, multiple answers
- Length of Examination: 150 minutes
- Passing Score: 65%
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Difficulty in writing 1Z0-809 Exam
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Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Filter, map, and process streams - Work with Optional class - Describe Stream interface and pipeline |
| Topic 2: Java Class Design | 15% | - Implement polymorphism - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement encapsulation - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition |
| Topic 3: Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components - Use Executors, Callable, Future |
| Topic 4: Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Topic 5: Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use try-with-resources - Create custom exceptions - Use assertions |
| Topic 6: JDBC | 5% | - Connect to database - Execute queries and updates - Process resultsets |
| Topic 7: 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 |
| Topic 8: Localization | 5% | - Use Locale class - Work with resource bundles - Format numbers, dates, messages |
| Topic 9: Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| Topic 10: Advanced Java Class Design | 10% | - Use abstract classes and methods - Use enumerated types - Create inner classes: static, local, nested, anonymous - Use final keyword |
| Topic 11: Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
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