Oracle 1Z0-819 : Java SE 11 Developer

1Z0-819 real exams

Exam Code: 1Z0-819

Exam Name: Java SE 11 Developer

Updated: Aug 26, 2026

Q & A: 297 Questions and Answers

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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 pdf:

  • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
  • Sort collections and arrays using Comparator and Comparable interfaces
  • Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
  • Use Java Streams to filter, transform and process data
  • Use generics, including wildcards
  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
  • Use a Java array and List, Set, Map and Deque collections, including convenience methods
  • Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package

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

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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:

  • Deploy and execute modular applications, including automatic modules
  • Define and use fields and methods, including instance, static and overloaded methods
  • Create and use subclasses and superclasses, including abstract classes
  • Handle file system objects using java.nio.file API
  • Implement serialization and deserialization techniques on Java objects
  • 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
  • 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
  • Create, apply, and process annotations
  • Declare, use, and expose modules, including the use of services
  • Read and write console and file data using I/O Streams
  • Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
  • Understand variable scopes, apply encapsulation and make objects immutable
  • Create and use enumerations

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  • Java SE 11 Developer Exam provides practical experience to candidates from all the aspects to be a proficient worker in the organization
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Oracle 1Z0-819 Exam Syllabus Topics:

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

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