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Oracle 1z0-819 Exam Syllabus

Java SE 11 Developer

Last Update Jun 15, 2025
Total Questions : 296

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1z0-819 Exam Details

Oracle 1z0-819 Exam Detail

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Free 1z0-819 Exam Questions

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Oracle 1z0-819 Exam Overview :

Exam Name Java SE 11 Developer
Exam Code 1z0-819
Actual Exam Duration 90 minutes
Expected no. of Questions in Actual Exam 50
Exam Registration Price $245
Official Information https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819 Exam Topics :

Section Weight Objectives
Working with Java data types  
  • Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
  • Handle text using String and StringBuilder classes
  • Use local variable type inference, including as lambda parameters
Controlling Program Flow  
  • Create and use loops, if/else, and switch statements
Java Object-Oriented Approach  
  • Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
  • Define and use fields and methods, including instance, static and overloaded methods
  • Initialize objects and their members using instance and static initialiser statements and constructors
  • Understand variable scopes, apply encapsulation and make objects immutable
  • Create and use subclasses and superclasses, including abstract classes
  • Utilize polymorphism and casting to call methods, differentiate object type versus reference type
  • Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
  • Create and use enumerations
Exception Handling  
  • Handle exceptions using try/catch/finally clauses, try-with-resource, and multi-catch statements
  • Create and use custom exceptions
Working with Arrays and Collections  
  • Use generics, including wildcards
  • Use a Java array and List, Set, Map and Deque collections, including convenience methods
  • Sort collections and arrays using Comparator and Comparable interfaces
Working with Streams and Lambda expressions  
  • Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
  • Use Java Streams to filter, transform and process data
  • Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
Java Platform Module System  
  • Deploy and execute modular applications, including automatic modules
  • Declare, use, and expose modules, including the use of services
Concurrency  
  • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
Java I/O API  
  • Read and write console and file data using I/O Streams
  • Implement serialization and deserialization techniques on Java objects
  • Handle file system objects using java.nio.file API
Secure Coding in Java SE Application  
  • Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
  • Secure resource access including filesystems, manage policies and execute privileged code
Database Applications with JDBC  
  • Connect to and perform database SQL operations, process query results using JDBC API
Localization  
  • Implement Localization using Locale, resource bundles, and Java APIs to parse and format messages, dates, and numbers
Annotations  
  • Create, apply, and process annotations

Updates in the Oracle 1z0-819 Exam Syllabus:

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