Oracle 1Z0-819 Exam Syllabus

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Before starting your 1Z0-819 exam preparation, it is recommended to review the complete Oracle Java SE 11 Developer exam syllabus and carefully go through the exam objectives listed below. Once you understand the exam structure and objectives, you should practice using our free 1Z0-819 questions. We also provide premium 1Z0-819 practice test, fully updated according to the latest exam objectives, to help you accurately assess your preparedness for the actual exam.

Oracle 1Z0-819 Exam Objectives

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

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