Java web application?

Question

Java

There was such a question. Is it possible to build a web application that runs in a browser written purely in java? For example, a graphics editor (adding lines, shapes, editing them and saving them to a file), or some kind of game. So that the client does not make any gestures, open and work. In what direction to dig?

Answer 1

Towards java webstart .
But the client machine still needs to have java runtime installed

Answer 2

Oh sure.