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Oracle 1Z0-819 Exam Topics

Oracle 1Z0-819 Exam

Java SE 11 Developer

Total Questions: 260

What is Included in the Oracle 1Z0-819 Exam?

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Oracle 1Z0-819 Exam Overview :

Exam Name Java SE 11 Developer
Exam Code 1Z0-819
Official Information https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
See Expected Questions Oracle 1Z0-819 Expected Questions in Actual Exam
Take Self-Assessment Use Oracle 1Z0-819 Practice Test to Assess your preparation - Save Time and Reduce Chances of Failure

Oracle 1Z0-819 Exam Topics :

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
  •     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
  •     Implement Localization using Locale, resource bundles, and Java APIs to parse and format messages, dates, and numbers
  •     Create, apply, and process annotations

Updates in the Oracle 1Z0-819 Exam Topics:

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