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Instant Download Oracle : 1Z0-819 Questions & Answers as PDF & Test Engine
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Jul 18, 2026
- No. of Questions: 297 Questions and Answers
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Oracle 1Z0-819 (Java SE 11 Developer) Exam is a certification exam that validates the skills and knowledge of Java developers who have experience in developing applications using Java SE 11. 1Z0-819 exam measures the ability of the candidate to write code using Java programming language and develop applications using Java SE 11 platform. 1Z0-819 exam is designed for developers who have a good understanding of the Java programming language, object-oriented programming concepts, and the Java SE 11 platform features.
To prepare for the Oracle 1Z0-819 exam, candidates can take advantage of a range of study materials, including books, online courses, practice exams, and more. It is also recommended that candidates have practical experience with Java programming, as this will help them to understand the concepts and practices covered in the exam.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819 exam is a certification exam designed for Java developers who want to demonstrate their proficiency in Java SE 11. Java SE 11 Developer certification exam is designed for individuals who have a deep understanding of Java programming language and a practical experience in developing Java applications using Java SE 11.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Concurrency | 8-12% | - Create and manage threads, use ExecutorService, Callable and Future - Use parallel streams and CompletableFuture - Use synchronization, locks, atomic variables and concurrent collections |
| Topic 2: Java I/O and NIO.2 | 8-12% | - 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 |
| Topic 3: Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| Topic 4: Exception Handling and Assertions | 8-12% | - Use assertions appropriately - Create custom exceptions and use standard exceptions - Use try-catch-finally, try-with-resources, throw and throws |
| Topic 5: Java Object-Oriented Approach | 15-20% | - Overload and override methods, use constructors and initializers - Declare and instantiate classes, interfaces, abstract classes and nested classes - Use local variable type inference - Apply encapsulation, inheritance, polymorphism and abstraction |
| Topic 6: JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Topic 7: Lambda Expressions and Streams | 12-18% | - Use Optional class and primitive type streams - Define and use functional interfaces and lambda expressions - Create and use stream pipelines, including intermediate and terminal operations |
| Topic 8: Arrays and Collections | 12-18% | - Use generics, wildcards and diamond notation - Create and manipulate arrays, lists, sets, maps, queues and deques - Sort and search collections and arrays |
| Topic 9: Working with Java Data Types | 10-15% | - Handle text using String, StringBuilder and StringBuffer classes - Manipulate numeric values and formatting - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting |
| Topic 10: Java Platform Module System | 8-12% | - Compile, package and run modular applications - Define modules, module declarations, requires, exports, opens, uses and provides - Use automatic modules and unnamed modules |
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