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Given that this exam is at the professional level of certification, candidates have a large amount of work to do. Therefore, the first thing that is recommended is to thoroughly review the complete list of topics available on the official exam page, which includes:

  • I/O Fundamentals. It means the skill of reading and writing data from the console.
  • NIO.2, Path Interface, and Files Class.
  • Localization. In particular how to read and set the locale by using the Locale object, to create and read a Properties file, and to build a recourse bundle for each locale.
  • Generics and Collections. This allows the candidate to create and use a generic class as well as ArrayList, TreeSet, TreeMap, and ArrayDeque objects.
  • Stream API. It means the code development that uses optional class, Stream data, and calculation methods in addition to sorting a collection using Stream API.
  • Exceptions and Assertions. In other words, how to use try-catch and throw statements, alongside creating custom exceptions and Auto-closeable resources.
  • Advanced Class Design. Specifically, candidates must demonstrate skills in how to implement encapsulation, polymorphism, and inheritance.
  • Java Concurrency. The candidates must be able to create worker threads, as well as to use parallel Fork/Join Framework and parallel Streams.

To apply for this Oracle certification test, you should first pay $245 for a voucher. After that, go to Pearson VUE and log into your account. Enter the exam code, which should be 1Z0-809, and follow the instructions that will pop up.

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These are following steps for registering the Oracle 1Z0-809 exam. Step 1: Visit to Pearson Exam Registration Step 2: Signup/Login to Pearson VUE account Step 3: Search for Oracle 1Z0-809 Exam Certifications Exam Step 4: Select Date, time and confirm with the payment method

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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Oracle 1z1-809 Exam Syllabus Topics:

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

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