Java Runtime Environment
The Java Runtime Environment (JRE) is a software layer that provides the libraries, Java Virtual Machine (JVM), and other components necessary to run Java applications on a computer. It includes the Java class libraries, Java Virtual Machine, and supporting files, but does not contain development tools like compilers or debuggers. The JRE enables Java programs to be platform-independent by abstracting the underlying operating system and hardware.
Developers should use the JRE when they need to deploy or run Java-based applications, such as desktop software, web applications (via applets or server-side components), or enterprise systems, without requiring development capabilities. It is essential for end-users and system administrators to execute Java programs, ensuring compatibility and security through managed runtime updates. The JRE is particularly critical in environments where Java applications are widely used, such as in banking, e-commerce, and legacy enterprise systems.