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Oracle 1z0-809 Korean Exam Syllabus Topics:

SectionObjectives
Topic 1: Java Concurrency- Multithreading
  • 1. Use ExecutorService
  • 2. Create and manage threads
  • 3. Use synchronized blocks and locks
  • 4. Use concurrent collections
Topic 2: Lambda Built-in Functional Interfaces- Functional programming
  • 1. Use UnaryOperator and BinaryOperator
  • 2. Use Predicate, Consumer, Function, and Supplier
  • 3. Use primitive functional interfaces
Topic 3: Java SE 8 Date/Time API- Date and time handling
  • 1. Use LocalDate, LocalTime, and LocalDateTime
  • 2. Format and parse date values
  • 3. Use Period and Duration
Topic 4: Java Class Design- Object-oriented principles
  • 1. Use static variables, methods, and initialization blocks
  • 2. Create singleton and immutable classes
  • 3. Implement encapsulation
  • 4. Implement inheritance and polymorphism
  • 5. Override equals, hashCode, and toString
Topic 5: Building Database Applications with JDBC- Database connectivity
  • 1. Process ResultSet data
  • 2. Use JDBC drivers and connections
  • 3. Execute SQL statements
Topic 6: Exceptions and Assertions- Error handling
  • 1. Use try-catch and try-with-resources
  • 2. Create custom exceptions
  • 3. Use assertions
Topic 7: Localization- Internationalization
  • 1. Use Locale and ResourceBundle
  • 2. Format dates and numbers
  • 3. Handle localization properties
Topic 8: Java Stream API- Stream processing
  • 1. Use findFirst, findAny, and match methods
  • 2. Use Optional
  • 3. Sort and filter data using streams
  • 4. Use map, flatMap, and peek
  • 5. Collect and group stream results
Topic 9: Java I/O Fundamentals- Input and output
  • 1. Read and write files
  • 2. Use BufferedReader and BufferedWriter
  • 3. Use serialization
Topic 10: Advanced Java Class Design- Advanced object-oriented features
  • 1. Develop Lambda expressions
  • 2. Use abstract classes and interfaces
  • 3. Use enum types
  • 4. Use the final keyword
  • 5. Create nested and inner classes
Topic 11: Generics and Collections- Collections framework
  • 1. Use Comparator and Comparable
  • 2. Create and use generic classes
  • 3. Use ArrayList, TreeSet, TreeMap, and ArrayDeque
  • 4. Iterate collections with Streams and forEach
Topic 12: Java File I/O- NIO.2 API
  • 1. Traverse directory structures
  • 2. Use Path and Files classes
  • 3. Read file attributes

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