Java Runtime Environment (JRE) is a software package that allows you to run Java applications on your computer. It includes the Java Virtual Machine (JVM), which executes Java bytecode, and the Java class libraries, which provide the functionality needed to run Java programs. The JRE is a critical component for running Java applications, as it provides the necessary environment for the applications to execute.
There are several ways to check the version of JRE installed on your Windows computer. One way is to open the Command Prompt and type the following command: