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Oracle 1Z0-855 Exam Syllabus Topics:

Section	Objectives
Topic 1: Java Language Fundamentals	- Core language constructs 1. Control flow, exceptions, and error handling 2. Data types and operators - Object-Oriented Programming principles 1. Class design and abstraction 2. Encapsulation, inheritance, polymorphism
Topic 2: Concurrency and Multithreading	- Thread management 1. Thread lifecycle and synchronization 2. Concurrency control mechanisms
Topic 3: Database Connectivity	- JDBC API usage 1. Database connection handling 2. SQL execution and result processing
Topic 4: Application Design and Implementation	- Software design principles 1. Error handling and robustness 2. Modular design and maintainability
Topic 5: Java APIs and Core Libraries	- I/O and Serialization 1. Object serialization concepts 2. File handling and stream APIs - Collections Framework 1. List, Set, Map usage and implementation choices 2. Generics and type safety