java.applet.Applet
	getAppletinfo - returns information about this applet
	init - called by browser or applet viewer to inform applet that it 
		has been loaded into the system.

java.awt.Color
	getBlue - returns the blue component
	darker - creates a darker version of this color

java.awt.Graphics	
	drawline (int x1,int x2, int y1, int y2) -draws a line using the 
		current color, between points(x1,y1) and (x2,y2) in this graphics 
		context's coordinate system.
	fillRect (int x, int y, int width, int height)- fills the 
		specified rectangle