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Certification Path
Oracle Java SE 8 Programmer I can act as a prerequisite for this 1Z0-809 exam.
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The benefit in Obtaining the 1Z0-809 Exam Certification
- 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 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 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 will be confident and stand different from others as their skills are more trained than non-certified professionals.
- 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.
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:
- 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.
- 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.
- 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.
- NIO.2, Path Interface, and Files Class.
- 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.
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.
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Concurrency | 12% | - Control thread lifecycle and synchronization - Use java.util.concurrent components - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future |
| Topic 2: Java Class Design | 15% | - Implement polymorphism - Implement encapsulation - Create singleton and immutable classes - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Override hashCode, equals, and toString methods |
| Topic 3: Java Stream API | 15% | - Work with Optional class - Describe Stream interface and pipeline - Filter, map, and process streams - Use terminal operations: collect, reduce, count |
| Topic 4: Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use assertions - Create custom exceptions - Use try-with-resources |
| Topic 5: Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references |
| Topic 6: JDBC | 5% | - Process resultsets - Execute queries and updates - Connect to database |
| Topic 7: Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant |
| Topic 8: Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Topic 9: Advanced Java Class Design | 10% | - Use final keyword - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use enumerated types |
| Topic 10: Localization | 5% | - Work with resource bundles - Use Locale class - Format numbers, dates, messages |
| Topic 11: Generics and Collections | 15% | - Sort and search collections - Analyze type safety and type erasure - Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue |
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