An Example: drawing the French tricolour
You can create images using Java. The early tutorials focus on drawing flags of the world, from simple flags such as Libya to more complicated flags such as the Stars and Stripes of the USA. In Java you can use methods such as
fillRect to create simple images.
<img src="http://progzoo.net/wiki/images/e/e3/Flag_guide_france.png" style="float:right"/> Notice that the blue rectangle is at (0,0), it is 50 wide and 100 deep so the commands to draw the blue rectangle are:
The white rectangle is at (50,0) and is also 50 by 100 so the fillRect command is
Lastly the red rectangle is at (100,0), again, it is 50 by 100:
Consult the User's Guide for information on changing material in progzoo.
You can mess about in the Playpen.