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Oracle 1Z0-819 certification exam is designed for Java professionals who wish to validate their skills and knowledge in Java SE 11 development. 1z0-819-JPN exam is a crucial step in the Java certification path and is highly recognized by employers globally. The Oracle 1Z0-819 exam is a comprehensive test that covers various topics, including Java fundamentals, object-oriented programming, concurrency, and collections, among others.

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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913

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Oracle 1Z0-819日本語 Exam Syllabus Topics:

SectionObjectives
Functional Programming- Lambda Expressions
  • 1. Functional interfaces
    • 2. Lambda syntax and usage
      Java Class Design- Encapsulation and Inheritance
      • 1. Class structure and modifiers
        • 2. Inheritance hierarchies
          - Polymorphism
          • 1. Dynamic binding
            • 2. Method overriding
              Generics and Collections- Generics
              • 1. Wildcards
                • 2. Generic classes and methods
                  - Java Collections Framework
                  • 1. Sorting and searching
                    • 2. List, Set, Map interfaces
                      JDBC and Database Connectivity- Database access
                      • 1. SQL execution from Java
                        • 2. JDBC API usage
                          Streams API- Stream operations
                          • 1. Intermediate and terminal operations
                            • 2. Collectors
                              Concurrency- Multithreading
                              • 1. Executor framework
                                • 2. Thread lifecycle
                                  Exception Handling- Error handling in Java
                                  • 1. Checked and unchecked exceptions
                                    • 2. Try-catch-finally blocks
                                      Java I/O and NIO- File handling
                                      • 1. NIO file APIs
                                        • 2. FileReader and FileWriter

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