Oracle 1z1-809 : Java SE 8 Programmer II

Exam Code: 1z1-809

Exam Name: Java SE 8 Programmer II

Updated: Oct 03, 2026

Q & A: 209 Questions and Answers

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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:

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

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