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:

• Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
• Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
• 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
• 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
• Use generics, including wildcards
• Use Java Streams to filter, transform and process data

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:

• Implement serialization and deserialization techniques on Java objects
• Create and use enumerations
• 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
• Handle file system objects using java.nio.file API
• Connect to and perform database SQL operations, process query results using JDBC API Annotations
• Deploy and execute modular applications, including automatic modules
• Create and use subclasses and superclasses, including abstract classes
• Define and use fields and methods, including instance, static and overloaded methods
• Understand variable scopes, apply encapsulation and make objects immutable
• Utilize polymorphism and casting to call methods, differentiate object type versus reference type
• Create, apply, and process annotations
• Declare, use, and expose modules, including the use of services
• Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
• Read and write console and file data using I/O Streams

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Oracle Cloud Certification credentials are only valid for a period of 18 months from the date you earn the credential. The certification will become inactive at the end of 18 months. However, for Oracle candidates, it is necessary to hold an active certification in order to have access to various certification benefits including, using Oracle certification logos, certificates, scoring reports, digital badges, and certification verification.

To stay current, candidates have to re-certify themselves with the latest version of the exam. Oracle Cloud Certifications include various titles with levels that are Oracle Certified Associate, Specialist, and Professional. Moreover, the Oracle Cloud Certifications are updated continuously throughout the year for keeping current with major product and service releases and re-released on an annual basis with a new title.

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

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