Flex on Java

In 1995, Sun introduced the first Java platform and with it birthed the “applet.” The applet allowed Java applications to run inside the browser with rich functionality and all the benefits of the Java framework, including connecting to the server side. The applet became hugely popular for a couple of years but then its popularity waned. The applet adoption rate dropped mainly because of problems surrounding the browser plugin. Building features in an applet from scratch or even other rich implementations can be expensive compared to the
simplicity of using the Flex framework.