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Oracle Java SE 11 Developer : 1Z0-819
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Aug 18, 2026
- Q & A: 297 Questions and Answers
About Oracle Java SE 11 Developer : 1Z0-819 Exam
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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:
- Read and write console and file data using I/O Streams
- Deploy and execute modular applications, including automatic modules
- Implement serialization and deserialization techniques on Java objects
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use enumerations
- Create and use subclasses and superclasses, including abstract classes
- Declare, use, and expose modules, including the use of services
- Handle file system objects using java.nio.file API
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Create, apply, and process annotations
- Understand variable scopes, apply encapsulation and make objects immutable
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Initialize objects and their members using instance and static initialiser statements and constructors
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 2: Java Platform Module System | 8-12% | - Define modules, module declarations, requires, exports, opens, uses and provides - Use automatic modules and unnamed modules - Compile, package and run modular applications |
| Topic 3: Exception Handling and Assertions | 8-12% | - Use try-catch-finally, try-with-resources, throw and throws - Create custom exceptions and use standard exceptions - Use assertions appropriately |
| Topic 4: Concurrency | 8-12% | - Use synchronization, locks, atomic variables and concurrent collections - Use parallel streams and CompletableFuture - Create and manage threads, use ExecutorService, Callable and Future |
| Topic 5: Lambda Expressions and Streams | 12-18% | - 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 |
| Topic 6: JDBC Database Access | 5-8% | - Connect to databases, execute queries and updates - Process result sets, manage transactions and resources |
| Topic 7: Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |
| Topic 8: Java Object-Oriented Approach | 15-20% | - Apply encapsulation, inheritance, polymorphism and abstraction - Use local variable type inference - Declare and instantiate classes, interfaces, abstract classes and nested classes - Overload and override methods, use constructors and initializers |
| Topic 9: Working with Java Data Types | 10-15% | - Manipulate numeric values and formatting - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting - Handle text using String, StringBuilder and StringBuffer classes |
| Topic 10: Java I/O and NIO.2 | 8-12% | - Implement serialization and deserialization - Manage files, directories and file attributes with java.nio.file API - Read and write data using streams, readers, writers and channels |
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