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The benefit in Obtaining the 1Z0-809 Exam Certification

  • Oracle Certified Java Programmer has the knowledge to use the tools to complete the task efficiently and cost-effectively than the other non-certified professionals lack in doing so.
  • Oracle Certified Java Programmer will be confident and stand different from others as their skills are more trained than non-certified professionals.
  • Oracle Certified Java Programmer is distinguished among competitors. Oracle Certified Java Programmer certification can give them an edge at that time easily when candidates appear for a job interview employers seek to notify something which differentiates the individual to another.
  • Oracle Certified Java Programmer Certification provides practical experience to candidates from all the aspects to be a proficient worker in the organization.
  • Oracle Certified Java Programmer Certifications provide opportunities to get a job easily in which they are interested in instead of wasting years and ending without getting any experience.
  • Oracle Certified Java Programmer have more useful and relevant networks that help them in setting career goals for themselves. Oracle Certified Java Programmer networks provide them with the right career direction than non certified usually are unable to get.

What is the duration of the 1Z0-809 Exam

  • Length of Examination: 150 minutes
  • Passing Score: 65%
  • Format: Multiple choices, multiple answers
  • Number of Questions: 85

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:

  • Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
  • 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.
  • Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
  • Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
  • 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.
  • 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.

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.

Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809

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Oracle 1z0-809 Korean Exam Syllabus Topics:

SectionWeightObjectives
Concurrency12%- Control thread lifecycle and synchronization
- Use Executors, Callable, Future
- Create threads: Thread class, Runnable, ExecutorService
- Use java.util.concurrent components
Exceptions and Assertions8%- Use assertions
- Create custom exceptions
- Use try-catch, multi-catch, finally
- Use try-with-resources
Java SE 8 Date/Time API7%- Format and parse dates/times
- Work with Period, Duration, time zones
- Use LocalDate, LocalTime, LocalDateTime, Instant
Generics and Collections15%- Use Collections Framework: List, Set, Map, Queue
- Analyze type safety and type erasure
- Sort and search collections
- Use generic classes, interfaces, and methods
Lambda Expressions and Functional Interfaces15%- Create and use lambda expressions
- Use built-in functional interfaces: Predicate, Consumer, Function, Supplier
- Use primitive and binary variants of functional interfaces
- Use method references
Java Class Design15%- Implement inheritance including visibility modifiers and composition
- Override hashCode, equals, and toString methods
- Use static keyword in blocks, variables, methods, classes
- Implement encapsulation
- Implement polymorphism
- Create singleton and immutable classes
Localization5%- Work with resource bundles
- Format numbers, dates, messages
- Use Locale class
Advanced Java Class Design10%- Use enumerated types
- Create inner classes: static, local, nested, anonymous
- Use abstract classes and methods
- Use final keyword
Java I/O and NIO.28%- Read/write with java.io API
- Use Path, Files, FileSystem API
- Stream operations on files
JDBC5%- Connect to database
- Execute queries and updates
- Process resultsets
Java Stream API15%- Work with Optional class
- Use terminal operations: collect, reduce, count
- Filter, map, and process streams
- Describe Stream interface and pipeline
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