Summary

In this chapter, you learned the general life cycle of MIDP applications. You know how to build a user interface using the high-level lcdui widgets, and how to interact using the listener mechanism. You have learned to perform custom graphics using the low-level API, including device-independent flicker-free animation and coordination of graphics calculation and drawing.

The next chapter gives a corresponding overview of the PDAP life cycle and user interface. The PDAP introduction focuses on the differences between the J2SE AWT classes and the subset included in PDAP, but still gives a basic introduction to AWT programming.