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Oracle Java SE 8 Programmer I can act as a prerequisite for this 1Z0-809 exam.

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Java 1Z0-809 Free Test is a test created to demonstrate all the features of our Java8 Professional Web Simulator. You will be able to access 25 full questions and will have 44 minutes to finish the test.

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Oracle 1z0-809 Korean Exam Syllabus Topics:

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

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