Final answer:
A Java program running in a stand-alone environment is known as a desktop application or stand-alone application, which operates independently of a web browser.
Step-by-step explanation:
A Java program that is designed to execute inside a stand-alone environment is referred to as a desktop application or a stand-alone application. This type of application is typically executed within the user's local environment, often on a personal computer, and doesn't need to be embedded within a web page or rely on a web browser to function. Examples of desktop applications include media players, productivity tools, and games that can run independently without requiring an internet connection.