New Problem

Usually you would not use Java to draw a static picture. Java is used when the picture changes in response to user interaction, or is dynamically created based on ever-changing data.

For example, an interactive game might be written in Java. Perhaps the house and landscape are the background and the characters of the game move across the screen.

Sometimes a picture contains many elements that can be computed by a program, but are too numerous for a human to specify individually. The next example is an example of this.