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

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

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The Oracle 1Z0-809 exam is intended for those individuals who want to get the Oracle Certified Professional, Java SE 8 Programmer certification. The potential candidates for this test are those IT specialists who have some years of experience with Java SE 8 platform and hold the Oracle Certified Associate, Java SE 8 Programmer credential.

The Oracle 1Z0-809 is a 150-minute test with 85 questions, that are mainly of a multiple-choice format, but there may also be other types, such as drag and drop, simulations, or scenario-based. This certification exam is available in the English language and the passing score for it is 65%. However, you need to try to get more than that.

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Oracle 1z0-809 Korean Exam Syllabus Topics:

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

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