Oracle Java SE 8 Programmer II (1z0-809日本語版) : 1z0-809日本語

  • Exam Code: 1z0-809日本語
  • Exam Name: Java SE 8 Programmer II (1z0-809日本語版)
  • Updated: Aug 31, 2026   Q&As: 209 Questions and Answers
  • Q & A: 209 Questions and Answers

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About Oracle Java SE 8 Programmer II (1z0-809日本語版) : 1z0-809日本語 Exam

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Oracle 1Z0-809 Exam Reference

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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  • 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.
  • Take a look at the progress bar at the top; it will tell how you are progressing throughout the exam.
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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:

  • Building Database Applications with JDBC
  • Advanced Java Class Design
  • Java Concurrency
  • Localization
  • Java Class Design
  • Java Stream API
  • Java File I/O (NIO.2)
  • Exceptions and Assertions
  • Lambda Built-in Functional Interfaces
  • Generics and Collections
  • Java I/O Fundamentals
  • Use Java SE 8 Date/Time API

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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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:
  • 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.
  • Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
  • NIO.2, Path Interface, and Files Class.
  • 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.
  • 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.
  • 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 1z0-809日本語 Exam Syllabus Topics:
SectionWeightObjectives
Topic 1: Localization5%- Use Locale class
- Format numbers, dates, messages
- Work with resource bundles
Topic 2: Concurrency12%- Control thread lifecycle and synchronization
- Use java.util.concurrent components
- Create threads: Thread class, Runnable, ExecutorService
- Use Executors, Callable, Future
Topic 3: Java Class Design15%- Use static keyword in blocks, variables, methods, classes
- Override hashCode, equals, and toString methods
- Implement polymorphism
- Implement encapsulation
- Create singleton and immutable classes
- Implement inheritance including visibility modifiers and composition
Topic 4: Exceptions and Assertions8%- Use try-with-resources
- Use try-catch, multi-catch, finally
- Create custom exceptions
- Use assertions
Topic 5: Java SE 8 Date/Time API7%- Use LocalDate, LocalTime, LocalDateTime, Instant
- Format and parse dates/times
- Work with Period, Duration, time zones
Topic 6: JDBC5%- Execute queries and updates
- Process resultsets
- Connect to database
Topic 7: Generics and Collections15%- Use Collections Framework: List, Set, Map, Queue
- Sort and search collections
- Analyze type safety and type erasure
- Use generic classes, interfaces, and methods
Topic 8: Lambda Expressions and Functional Interfaces15%- Use built-in functional interfaces: Predicate, Consumer, Function, Supplier
- Use method references
- Create and use lambda expressions
- Use primitive and binary variants of functional interfaces
Topic 9: Java I/O and NIO.28%- Read/write with java.io API
- Use Path, Files, FileSystem API
- Stream operations on files
Topic 10: Java Stream API15%- Filter, map, and process streams
- Describe Stream interface and pipeline
- Work with Optional class
- Use terminal operations: collect, reduce, count
Topic 11: Advanced Java Class Design10%- Use abstract classes and methods
- Create inner classes: static, local, nested, anonymous
- Use final keyword
- Use enumerated types

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