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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.
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- 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.
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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.
There are several components you can interact with when you take our mock exams:
- Once the test is submitted, the result section will expand. Here, you will be able to review all the questions of the test. From here, you can also navigate directly to each question.
- Read the question and select only the answer(s) you think are correct by checking the corresponding check box.
- Navigate the Java Certification Questions using the “Previous” and “Next” buttons.
- Take a look at the progress bar at the top; it will tell how you are progressing throughout the exam.
- Mark the Java Certification Questions you wish to review later. All the questions you have marked will be listed in the right section “marked questions”. You will be able to jump directly to the question from this list.
- if you want to take a look at the correct answers for a question, just click the “Solution” button. In the solution section you will be able to check your answers as well as find a full explanation.
- Keep an eye on the countdown. This will tell you how much time is left. When the countdown expires, the test will be automatically submitted.
For more info visit: Oracle Java8 1Z0-809 Exam Reference
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Oracle 1z0-809 Korean Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exceptions and Assertions | 8% | - Use assertions - Create custom exceptions - Use try-catch, multi-catch, finally - Use try-with-resources |
| Topic 2: 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 |
| Topic 3: Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Work with Optional class - Describe Stream interface and pipeline - Filter, map, and process streams |
| Topic 4: Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Sort and search collections - Use Collections Framework: List, Set, Map, Queue |
| Topic 5: Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times - Work with Period, Duration, time zones |
| Topic 6: Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Topic 7: Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| Topic 8: JDBC | 5% | - Execute queries and updates - Connect to database - Process resultsets |
| Topic 9: Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use final keyword - Use enumerated types - Use abstract classes and methods |
| Topic 10: Java Class Design | 15% | - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Create singleton and immutable classes - Implement encapsulation - Implement polymorphism - Override hashCode, equals, and toString methods |
| Topic 11: Localization | 5% | - Work with resource bundles - Format numbers, dates, messages - Use Locale class |
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