What is an applet primarily characterized by?

An applet is primarily characterized as a compact program that can be quickly downloaded. This definition highlights the efficiency and lightweight nature of applets, which are designed to run in a web browser or a host environment without requiring a significant amount of resources or time to load.

Applets are typically written in Java and are used to add interactive features to web applications. Their small size allows them to be transmitted over the internet with minimal lag, enhancing user experience. This characteristic distinguishes them from larger applications that may take longer to download and install.

The focus on compactness and quick download capability is essential in environments where bandwidth is limited or where a user experience that demands immediate interaction is critical. Therefore, the defining feature of an applet lies in its ability to be lightweight and easily accessible for quick use in various applications, especially in web development.