3.3. Displaying graphics and shapes using Java
3.3.1. Lines, rectangles, and ovals on Web pages
Before Java, using graphics on Web pages was considered to be a challenge for all Web programmers. Indeed, Java still remains one of the best technologies to provide graphics capabilities on the World Wide Web. At a basic level, Java provides a set of simple functions to draw fundamental graphic shapes including lines, rectangles, and ovals on your Web pages. Some frequently used graphics functions and their calling syntax are listed below:
| • drawLine(x1,y1,x2,y2) | – | Draws a line from position (x1,y1) to (x2,y2) in the applet window. |
| • drawRect(x1,y1,w,h) | – | Draws a rectangle at position (x1,y1) with w (i.e., width) and h (i.e., height) pixels. |
| • fillRect(x1,y1,w,h) ... |
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