Kicking Butt with MIDP and MSA: Creating Great Mobile Applications

4. Core APIs

THIS is the least exciting chapter of this book, but you should read it anyhow. Remember that great achievements are made up of many smaller achievements. To raise a child, you must learn how to change dirty diapers. To build a Great Pyramid, you must move a lot of rocks.

To kick butt with your MIDP applications, you have to understand the core APIs, which are similar but not the same as the corresponding APIs in the desktop Java platform.

• Fundamental classes in java.lang define strings, primitive type wrappers, and important classes like Object and Thread.

• The stream classes in java.io allow you to send and receive information. Stream classes are used mainly for networking and file access.

• The utilities in java.util include basic ...