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

  • Exam Code: 1z1-809-KR
  • Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
  • Updated: Sep 13, 2026
  • Q&As: 209 Questions and Answers

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The 1z0-809 exam covers a wide range of topics, including Java Class Design, Advanced Inheritance, Generics and Collections, Lambda Expressions, Java File I/O (NIO.2), Concurrency, JDBC, Localization, and Annotations. Candidates are also expected to have experience with Java tools and technologies, including the Java Development Kit (JDK), the Java SE 8 API documentation, and the Java Platform, Enterprise Edition (Java EE). 1z1-809-KR exam consists of 85 multiple-choice and multiple-select questions and has a duration of 180 minutes. A passing score of 65% or higher is required to obtain certification.

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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The Oracle 1z1-809-KR exam consists of 80 multiple-choice questions that need to be completed within 150 minutes. 1z1-809-KR exam is offered through Pearson VUE and can be taken at any authorized testing center. A passing score of 65% or above is required to obtain the certification, which is valid for a period of three years. The Oracle 1z1-809 Exam is an essential certification for any Java developer who wants to take their skills to the next level and demonstrate their proficiency to potential employers.

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Oracle 1z0-809 Korean Exam Syllabus Topics:

SectionObjectives
Java SE 8 Date/Time API- Date and time handling
  • 1. Format and parse date values
  • 2. Use LocalDate, LocalTime, and LocalDateTime
  • 3. Use Period and Duration
Generics and Collections- Collections framework
  • 1. Use ArrayList, TreeSet, TreeMap, and ArrayDeque
  • 2. Iterate collections with Streams and forEach
  • 3. Create and use generic classes
  • 4. Use Comparator and Comparable
Lambda Built-in Functional Interfaces- Functional programming
  • 1. Use UnaryOperator and BinaryOperator
  • 2. Use Predicate, Consumer, Function, and Supplier
  • 3. Use primitive functional interfaces
Advanced Java Class Design- Advanced object-oriented features
  • 1. Use enum types
  • 2. Develop Lambda expressions
  • 3. Create nested and inner classes
  • 4. Use abstract classes and interfaces
  • 5. Use the final keyword
Java Concurrency- Multithreading
  • 1. Use concurrent collections
  • 2. Use ExecutorService
  • 3. Create and manage threads
  • 4. Use synchronized blocks and locks
Exceptions and Assertions- Error handling
  • 1. Create custom exceptions
  • 2. Use try-catch and try-with-resources
  • 3. Use assertions
Java Stream API- Stream processing
  • 1. Collect and group stream results
  • 2. Use map, flatMap, and peek
  • 3. Sort and filter data using streams
  • 4. Use Optional
  • 5. Use findFirst, findAny, and match methods
Java Class Design- Object-oriented principles
  • 1. Implement encapsulation
  • 2. Create singleton and immutable classes
  • 3. Implement inheritance and polymorphism
  • 4. Override equals, hashCode, and toString
  • 5. Use static variables, methods, and initialization blocks
Java File I/O- NIO.2 API
  • 1. Traverse directory structures
  • 2. Read file attributes
  • 3. Use Path and Files classes
Localization- Internationalization
  • 1. Handle localization properties
  • 2. Format dates and numbers
  • 3. Use Locale and ResourceBundle
Building Database Applications with JDBC- Database connectivity
  • 1. Process ResultSet data
  • 2. Execute SQL statements
  • 3. Use JDBC drivers and connections
Java I/O Fundamentals- Input and output
  • 1. Use BufferedReader and BufferedWriter
  • 2. Read and write files
  • 3. Use serialization

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