Runtime Environment for Java
Java Runtime Environment is a free development software created by Oracle. As its name suggests, it is a runtime environment that was specifically meant to run programs that were made in the Java programming language for computers. It provides the necessary libraries and resources for them to work properly.
The Java Runtime Environment, sometimes referred to as JRE, is essentially a software layer that runs on top of your operating system. It provides the necessary libraries and resources that programs made using Java need to run and work properly on your computer. Together with the Java Virtual Machine and the Java Development Kit, they form a trifecta of platform components needed for developing using this particular programming language.