In previous chapters, we looked at the components and component architecture of graphical user interfaces (GUIs) using Java's Swing and AWT packages. Now, we're going to drop down a level and look at the procedural APIs for rendering graphics in Java applications. These APIs are used by components to paint themselves on the screen and to display icons and graphics. This chapter goes into some detail about Java's sophisticated 2D, resolution-independent drawing API and the core tools for loading and displaying images. In the next chapter, we'll explore dynamic image-processing tools in more detail and look at the classes that let you generate and modify image data, pixel by pixel.