Oracle Java Standard Edition 6 Developer Certified Master Downloadable Project (Step 1 of 2) : 1Z0-855

1Z0-855 real exams

Exam Code: 1Z0-855

Exam Name: Java Standard Edition 6 Developer Certified Master Downloadable Project (Step 1 of 2)

Updated: Aug 26, 2026

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Oracle 1Z0-855 Exam Syllabus Topics:

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

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