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The Java Runtime Environment commonly referred to as JRE, is a software layer that provides the libraries Java programs need to run. It typically runs on top of the computer's operating system as added assistance. Additionally, the JRE installation package includes Java Web Start and Java Plugin to provide advanced support for future Java updates.

What are the key features of Java Runtime Environment?

Interface Toolkits: The Java JRE includes toolkits that assist developers in improving their user interface. You will gain access to Java 2D (an Application Programming Interface), Abstract Window Toolkit (a Graphical User Interface), and Swing (another Graphical User Interface). With these three, you will be able to create special effects, animations, scroll bars, and windows.
Integration libraries: Java Runtime Environment provides a number of integration libraries to assist developers in creating seamless data connections between their applications and services.
Java IDL support: distributed objects written in Java programming language, and the Java Database Connectivity Provides for writing applications with access to remote relationship databases, flat files, and spreadsheets.
Language and utility libraries: These java.lang. and java.util. packages are essential for designing applications, package versioning, management, and monitoring. With this, you will be able to work with Collections frameworks, concurrency utilities, logging, preferences API, and Java Archive.

How does Java JRE work?

JRE works as a full-featured package to work with Java programming language and make the most out of it. You can learn more about it via its official Help page.