Titlebook: Beginning J2ME; From Novice to Profe Sing Li,Jonathan Knudsen Book 2005Latest edition Sing Li and Jonathan Knudsen 2005 Java.JavaOne.MIDP.M

idiopathic

nonchalance

Programming a Custom User Interface,her specialized user interfaces. Games are programmed “closer to the metal” than other applications. MIDP offers a class, javax.microedition.lcdui.Canvas, that provides low-level access to a device’s screen and input facilities. You can find out exactly which keys a user is pressing and draw whatever you want on the screen.

Osmosis

Performance Tuning,ory will be much smaller also. Making your application run fast and lean is important. You’ll need to use memory sparingly, make your application run fast enough to be easily usable, and structure it so that the code itself is as small as it can be.

ORBIT

Simona Pekarek Doehler,Cécile Petitjeane subjects that we skimmed in the last chapter, starting with the MIDlet life cycle and continuing through to a full discussion of MIDlet packaging. The chapter concludes with a look at the MIDlet security architecture.

歌唱队

offense

冲突

fringe

Michel Janssen,Matthew MecklenburgIn the last chapter, you learned about Forms, the most flexible and powerful descendents of javax.microedition.lcdui.Screen. Forms are essentially collections of Items. The MIDP APIs include a useful toolbox of Item subclasses, everything from text and image display to interactive date fields and gauges.

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