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Oracle 1z0-809 exam is an important certification for Java developers who want to demonstrate their mastery of the Java programming language. It is a valuable credential that can help developers advance their careers and increase their earning potential. 1z0-809-JPN exam is recognized internationally and is a requirement for many Java-related job positions.

1z1-809 (Java SE 8 Programmer II) certification exam covers advanced Java concepts such as collections, generics, Lambdas, functional interfaces, I/O, JDBC, concurrency, and more. By passing 1z0-809-JPN exam, professionals can showcase their advanced programming skills and capabilities in Java development. Furthermore, it also verifies their ability to develop secure, robust, and efficient code using Java SE 8, which is the latest version of Java.

Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809

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To prepare for the Oracle 1z1-809 exam, candidates should have a good understanding of Java programming language and its core concepts. They should also have hands-on experience in developing Java applications using Java SE 8. Candidates can take advantage of various study materials, including books, online courses, and practice exams, to prepare for the exam.

Oracle 1z1-809: Java SE 8 Programmer II exam is a challenging certification exam that tests the skills and knowledge of experienced Java programmers. Becoming certified in Java SE 8 can open up new career opportunities and demonstrate to employers that you have the skills and knowledge needed to excel in the field of IT.

Oracle 1z0-809日本語 Exam Syllabus Topics:

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

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