Oracle 1Z0-819日本語 : Java SE 11 Developer (1Z0-819日本語版)

  • Exam Code: 1z0-819-JPN
  • Exam Name: Java SE 11 Developer (1Z0-819日本語版)
  • Updated: Sep 07, 2026
  • Q & A: 297 Questions and Answers

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About Oracle 1Z0-819日本語 Exam Questions

Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps:

  • Create and use subclasses and superclasses, including abstract classes
  • Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
  • Secure resource access including filesystems, manage policies and execute privileged code
  • Define and use fields and methods, including instance, static and overloaded methods
  • Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
  • Initialize objects and their members using instance and static initialiser statements and constructors
  • Create and use enumerations
  • Utilize polymorphism and casting to call methods, differentiate object type versus reference type
  • Understand variable scopes, apply encapsulation and make objects immutable
  • Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)

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

Oracle 1Z0-819日本語 Exam Syllabus Topics:

SectionWeightObjectives
Arrays and Collections12-18%- Sort and search collections and arrays
- Use generics, wildcards and diamond notation
- Create and manipulate arrays, lists, sets, maps, queues and deques
Java I/O and NIO.28-12%- Read and write data using streams, readers, writers and channels
- Implement serialization and deserialization
- Manage files, directories and file attributes with java.nio.file API
Lambda Expressions and Streams12-18%- Use Optional class and primitive type streams
- Create and use stream pipelines, including intermediate and terminal operations
- Define and use functional interfaces and lambda expressions
JDBC Database Access5-8%- Process result sets, manage transactions and resources
- Connect to databases, execute queries and updates
Concurrency8-12%- Create and manage threads, use ExecutorService, Callable and Future
- Use parallel streams and CompletableFuture
- Use synchronization, locks, atomic variables and concurrent collections
Secure Coding and Localization5-8%- Apply secure coding practices, input validation and data protection
- Use Locale, ResourceBundle and formatting APIs for internationalization
Java Platform Module System8-12%- Compile, package and run modular applications
- Use automatic modules and unnamed modules
- Define modules, module declarations, requires, exports, opens, uses and provides
Java Object-Oriented Approach15-20%- Overload and override methods, use constructors and initializers
- Use local variable type inference
- Declare and instantiate classes, interfaces, abstract classes and nested classes
- Apply encapsulation, inheritance, polymorphism and abstraction
Working with Java Data Types10-15%- Handle text using String, StringBuilder and StringBuffer classes
- Use primitives and wrapper classes, including operators, parentheses, type promotion and casting
- Manipulate numeric values and formatting
Exception Handling and Assertions8-12%- Use assertions appropriately
- Create custom exceptions and use standard exceptions
- Use try-catch-finally, try-with-resources, throw and throws

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