Demo Applets and Applications(In the demo/ subdirectory) Examples, with source code, of programming for the Javaplatform.Additional Libraries(In the lib/ subdirectory) Additional class libraries and support files required by the development tools.The JRE includes a Java Virtual Machine (JVM), class libraries, and other files that support the execution of programs written in the Java programming language. Runtime Environment(In the jre/ subdirectory) An implementation of the Java Runtime Environment (JRE) for use by the JDK.Development Tools(In the bin/ subdirectory) Tools and utilities that will help you develop, execute, debug, and document programs written in the JavaTM programming language.This tool also helps manage JAR files, javadoc - the documentation generator, which automatically generates documentation from source code comments, jdb - the debugger, jps - the process status tool, which displays process information for current Java processes, javap - the class file disassembler, and other components are also included.

JDK has a collection of programming tools, including javac, jar, and the archiver, which packages related class libraries into a single JAR file. Java Development Kit contains the software and tools that you need to compile, debug, and run applets and applications written using the Java programming language. As a result, those packages have moved, and this will require changes to package imports.Java Development Kit is the official development kit for the Java programming language. Oracle has chosen the Eclipse Foundation as the new home for the Java Platform Enterprise Edition.Due to lack of browser support for Java plugins, the Applet API has been deprecated.The “var” keyword only affects local variables, and the Type Inference keeps you repeating the same text over and over again

A developer-friendly keyword “var” was added to help to reduce boilerplate coding.

This is very interesting for serverless-compute and one-offs in Kubernetes

A REPL (read-eval-print-loop) tool, JShell, was added to support interactive programming, similar to what is available in Python.

Modularization also enables code to be refactored for easier maintenance, through a self-describing collection of code, data, and resources. The introduction of modularity to better support scaling down to small computing devices.However, the biggest differences between Java 8 and Java 11 are: There are always a lot of little things that go into a release of Java, or any product for that matter.

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