Triangles

Play in web browser (requires Java 1.4)

This doesn't do much, but I just really wanted to put a home-made Java applet on my web site :D .

The first click inside the box selects a point, the second click draws a line, and the third connects the three with a triangle.  And then it all repeats, with a different colour.  Note that the applet is black, like the page background.