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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:
- 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.
- Take a look at the progress bar at the top; it will tell how you are progressing throughout the exam.
- Read the question and select only the answer(s) you think are correct by checking the corresponding check box.
- 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.
- Navigate the Java Certification Questions using the “Previous” and “Next” buttons.
- 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.
- 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.
For more info visit: Oracle Java8 1Z0-809 Exam Reference
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1Z0-809 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our Oracle 1Z0-809 exam dumps will include the following topics:
- Advanced Java Class Design
- Generics and Collections
- Localization
- Java File I/O (NIO.2)
- Building Database Applications with JDBC
- Java Stream API
- Java Concurrency
- Use Java SE 8 Date/Time API
- Java I/O Fundamentals
- Exceptions and Assertions
- Java Class Design
- Lambda Built-in Functional Interfaces
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Stream API | 15% | - Describe Stream interface and pipeline - Filter, map, and process streams - Use terminal operations: collect, reduce, count - Work with Optional class |
| Advanced Java Class Design | 10% | - Use final keyword - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous - Use enumerated types |
| JDBC | 5% | - Execute queries and updates - Connect to database - Process resultsets |
| Lambda Expressions and Functional Interfaces | 15% | - Create and use lambda expressions - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references - Use primitive and binary variants of functional interfaces |
| Generics and Collections | 15% | - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods - Sort and search collections |
| Localization | 5% | - Format numbers, dates, messages - Use Locale class - Work with resource bundles |
| 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 - Use try-catch, multi-catch, finally - Create custom exceptions - Use assertions |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Read/write with java.io API - Use Path, Files, FileSystem API |
| Java Class Design | 15% | - Create singleton and immutable classes - Implement polymorphism - Override hashCode, equals, and toString methods - Implement inheritance including visibility modifiers and composition - Implement encapsulation - Use static keyword in blocks, variables, methods, classes |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use java.util.concurrent components - Control thread lifecycle and synchronization - Use Executors, Callable, Future |
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