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Oracle 1z0-809日本語 Exam Syllabus Topics:

SectionObjectives
Localization- Internationalization
  • 1. Handle localization properties
  • 2. Format dates and numbers
  • 3. Use Locale and ResourceBundle
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
Java I/O Fundamentals- Input and output
  • 1. Use BufferedReader and BufferedWriter
  • 2. Read and write files
  • 3. Use serialization
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
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
Advanced Java Class Design- Advanced object-oriented features
  • 1. Create nested and inner classes
  • 2. Use the final keyword
  • 3. Develop Lambda expressions
  • 4. Use enum types
  • 5. Use abstract classes and interfaces
Exceptions and Assertions- Error handling
  • 1. Use try-catch and try-with-resources
  • 2. Use assertions
  • 3. Create custom exceptions
Java Concurrency- Multithreading
  • 1. Create and manage threads
  • 2. Use concurrent collections
  • 3. Use ExecutorService
  • 4. Use synchronized blocks and locks
Lambda Built-in Functional Interfaces- Functional programming
  • 1. Use Predicate, Consumer, Function, and Supplier
  • 2. Use primitive functional interfaces
  • 3. Use UnaryOperator and BinaryOperator
Building Database Applications with JDBC- Database connectivity
  • 1. Use JDBC drivers and connections
  • 2. Process ResultSet data
  • 3. Execute SQL statements
Java File I/O- NIO.2 API
  • 1. Read file attributes
  • 2. Use Path and Files classes
  • 3. Traverse directory structures
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

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