Oracle 1z0-809 Korean exam : Java SE 8 Programmer II (1z0-809 Korean Version)

1z0-809 Korean Exam Simulator
  • Exam Code: 1z1-809-KR
  • Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
  • Updated: Aug 10, 2026
  • Q & A: 209 Questions and Answers

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Oracle 1z0-809 Korean exam simulator

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1Z0-809 Exam topics

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

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

Oracle 1z0-809 Korean Exam Syllabus Topics:

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

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