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  • Exam Code: 1z1-809-KR
  • Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
  • Last Updated: Jul 22, 2026
  • Q & A: 209 Questions and Answers
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  • Exam Code: 1z1-809-KR
  • Exam Name: Java SE 8 Programmer II (1z0-809 Korean Version)
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  • Q & A: 209 Questions and Answers
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Oracle 1z1-809 (Java SE 8 Programmer II) Certification Exam is a professional level certification designed for experienced Java developers who want to demonstrate their advanced knowledge and skills in Java programming. Java SE 8 Programmer II (1z0-809 Korean Version) certification exam covers a wide range of Java SE 8 programming topics, including Java Class Design, Generics and Collections, Lambda Expressions, Java Stream API, Java File I/O and NIO.2, Java Concurrency, JDBC API, Localization, Annotations, and Java Security.

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Oracle 1z1-809: Java SE 8 Programmer II is an advanced level certification exam that validates a candidate's skills and knowledge in Java programming language. 1z1-809-KR exam is designed for professionals who have a strong foundation in Java programming and want to enhance their skills to work on complex Java projects. 1z1-809-KR exam covers various topics related to Java SE 8, including Lambda expressions, functional interfaces, collections, streams, concurrency, and JDBC.

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Oracle 1z0-809 Korean Exam Syllabus Topics:

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

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