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New Capabilities of JDK 8 for Oracle Java Programmers

Oracle Java is a top-ranking programming language and development platform being used as a preferred choice to shorten the development period, reduce cost, drive innovation, and improve application performance. Millions of app developers are running over 51 billion JVMs (Java Virtual Machines). Version Java 8 Update 311 was released on October 19, 2021; Oracle recommends that all the Java SE 8 users should upgrade their practices to this release. The new license agreement of Oracle Technology Network for Oracle Java SE is different from previous Oracle Java licenses.

New Oracle Java 8 Features Make It #1 Choice of Java Programmers

New Oracle Java 8 Features Make It #1 Choice of Java Programmers

The revolutionary release of Oracle Java is an evolution of the Java language, JVM, and libraries. It introduces several changes to the Java programming model. Java Oracle 8 includes much-advanced features for improved ease of use, productivity, security, performance, polyglot programming, etc. The top eight Oracle Java programming language features are-

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Lambda Expressions: It provides a concise way for SAM interface (Single Abstract Method) implementation by using an expression to write code in functional style. It is a great help for iterating, filtering, and extracting data. Lambda expression is used for implementation of functional interfaces. This exciting feature of Java SE 8 eliminates the need to repeat the implementation method again. The annotation @FunctionalInterface declares an interface as the functional interface. Less coding efforts simplify the task for Oracle Java development experts.

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Method Reference: Lambda Expression can be replaced with Method Reference when used just for referring to a method. The compact variant of Lambda expression, Java method references are available in three types- a. Reference to static method; b. Reference to an instance method; c. Reference to a constructor. Details about ‘how to use these three types of ‘Java Method References’, are available at- https://www.javatpoint.com/java-8-method-reference

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Functional Interface: Also known as Single Abstract Method Interface (SAM Interface), Functional interface contains a number of static and default methods with the ability to declare object class methods. Functional interfaces provide a target type in multiple contexts for method references and Lambda expressions. The general purpose functional interfaces can be used as user code also. These interfaces are annotated with FunctionalInterface

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Stream APIs: The stream package is built with various classes, interfaces, and an enum to facilitate the developers for functional-style operation on elements. The java.util.stream package consists of interfaces, classes, and enum to allow functional-style operations on different elements. Once created, the instance doesn’t change its source. Developers can create multiple stream instances from one source. Stream operations can be executed in sequential or parallel ways.

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Default Methods: It allows creating default non-abstract methods specified with default keywords within the interface. Before the release of Java Oracle 8, interfaces used to have abstract methods only. Java 8 offers default methods that allow interfaces to have implementation methods without changing the interface implementing class; it means backward compatibility is preserved. Java 8 default methods allow adding new methods to interfaces automatically available in implementations.

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Base64 Encode Decode: It is used to manage encryptions and decryptions. It offers three different encoders and decoders for information to encryption at different levels- Basic Encoding and Decoding; URL and Filename Encoding and Decoding; MIME. To use this method, developers need to import java.util.Base64 in the source file. This class implements a decoder for decoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.

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Concurrency Enhancements:Java 8 added a ‘CompletableFuture’ class in its Concurrency API. It is a pack of four classes and two interfaces. It is used to identify asynchronous tasks. It is a great help for debugging, monitoring, and tracking asynchronous processes. The java.util.concurrent package has four new classes and two new interfaces-

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JDBC Enhancements:JDBC-ODBC Bridge is removed and JDBC 4.2 is advanced with features like REF_CURSOR support, java.sql.DriverAction Interface and java.sql.SQLType, etc. Now Oracle Java development experts use JDBC drivers in place of the JDBC-ODBC Bridge. The other JDBC improvements include-

  • java.sql.DriverAction Interface
  • REF_CURSOR support
  • Security check on deregisterDriver Method in DriverManager Class
  • java.sql.SQLType Interface
  • java.sql.JDBCType Enum
  • Support for volumetric update counts

Reasons to Adopt Oracle Java 8: Enhanced Capabilities of JDK 8

Reasons to Adopt Oracle Java 8: Enhanced Capabilities of JDK 8

JDK 8 (Standard Edition 8 Development Kit) is a features-enriched release of the Java SE platform. It comes with three detailed documents to state compatibility- Source compatibility; Behavioral compatibility; Binary compatibility. JDK 8 has become a top choice of business solution developers because of having next-generation advanced capabilities in all the verticals-

  • Java Programming Language: Repeating Annotation facilitates to apply the same annotation for repetitive coding tasks
  • Collections: Key Collisions for HashMaps performance improvement
  • JavaFX: It is a new Modena theme with SwingNode class, DatePicker, TreeTableView etc
  • Tools: jjs command, jdeps command-line, Java Management Extensions (JMX), etc.
  • Internationalization: Unicode Enhancement, Unicode CLDR Data adoption, etc
  • Deployment: URLPermission allows connecting back to the server from which Java Web Start applications were started.
  • Scripting: Nashorn Javascript Engine has replaced Rhino javascript engine
  • Java DB: JDK 8 is empowered with Java DB 10.10

Concluding Note:

JDK 8 includes Java Mission Control 5.3 also which is a set of tools. It enables the Oracle Java programmers for efficient analysis of a massive database developed by Java Flight Recorder. JDK 8 keeps the Windows systems up-to-date to accommodate every Java update, provided auto-update permission is granted by the user. Java SE Licensing FAQs are available at- https://www.oracle.com/java/technologies/ javase/jdk-faqs.html

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