Java Code House

Today I am going to post how you paint and stroke a shape in java using Graphics2D. But before going into the details of the program I would like to briefly describe about the painting and stroking operation.

•  Painting is the process of filling the interior of the shape with a color, color gradient, or texture. The process of filling the shape interior is done in two steps :

1. First, tell the Graphics2D how to fill shapes with a call to setPaint(). This method accepts any object that implements the java.awt.Paint interface. The Graphics2D stores the Paint away as part of its state. When it comes time to fill a shape, Graphics2D will use the Paint to determine what colors should be used to fill the shape. The 2D API comes with three kinds of "canned" paints: solid colors, a linear color gradient, and a texture fill. You can add your own Paint implementations if you wish. 
2. Now you can tell Graphics2Dto fill a shape by passing it to fill(). 

•  Stroking is the process of drawing the shape's outline. You can draw an outline using different line widths, line styles, and colors. The stroking process is completed in three steps :

1. First, tell the Graphics2D how you want the outline to be drawn by calling setStroke(). This method accepts any object that implements the java.awt.Stroke interface. The 2D API comes with a class, java.awt.BasicStroke, that implements common stroking options. 
2. Use setPaint() to tell the Graphics2D how the outline itself should be drawn. Outlines, like the interior of shapes, can be drawn using a color, a gradient, a texture, or anything else that implements the Paint interface. 
3. Draw the outline of the shape using Graphics2D's draw() method. The Graphics2D uses the Stroke from step 1 to determine what the outline looks like. The Paint from step 2 is used to actually render the outline.