Building a J2ME development environment, the platforms and tools used are as follows: Eclipse3.0 (Download from http://www.eclipse.com) Eclipseme (download 0.4.6 and 0.7 from http://eclipseme.sourceforge.net/. 0 version, why download 0.4.6 this version, later introduced) J2ME SDK (from http://java.sun.com/products/j2mewtoolkit/download-2_2.html Download) I just started to install the Eclipseme plugin directly, Download the EclipseMe.Feature_0.7.0_site.zip version from the Internet, decompress the installation method of the general Eclipse plugin to PLUGS, FEATURE, and find that it is not normal to use. Although J2ME options can be seen in the Eclipse tool strip Window-> Preferences, as long as one click this option, it will be reported: Plug-in Eclipseme.UI WAS Unable to load class eclipseme.ui.internal.PReferences.j2mepreferencePage ... ... see the installation instructions for Eclipseme0.7.0, learn about this version of the installation requires upgrading from the Eclipse. So I downloaded Eclipseme-0.4.6.zip, and then put the unzipped folder in the plugs directory after decompression, and then the installation was successful. Now upgrade, open the Eclipse toolbar, Help -> Software Updates-> FIND AND INSTALL, select "Search for New Features To Install", select "New ArchiveD Site", select the downloaded Eclipseme.Feature_0 .7.0_site.zip file, then select this, click "Next", "Search Results" interface, select EclipseMe Feature, click "Finish". Come. The J2ME can be developed in Eclipse in Eclipse. There are many introductions on the Internet to develop "Hello, World!", You can refer to.