how to installation Your Blackberry improvement environment

you may effortlessly expand BlackBerry software programs if you install the right gear for your laptop: a Java software development package (JDK) and a BlackBerry Java improvement surroundings (JDE). those equipment are downloadable free of charge from the solar Microsystems and research In motion web sites.

The JDK supplies the fundamental gear for compiling Java supply code into the bytecode utilized by the Java interpreter. The JDK additionally provides the Java interpreter that is used to run most of the improvement gear inside the JDE.

The JDE supplies the BlackBerry-unique tools for transforming Java bytecode into the unique format utilized by the Java-like interpreter on BlackBerry handhelds. It additionally supplies the debugging and enhancing equipment required for critical software development.

begin by determining which model of the BlackBerry operating gadget (OS) you propose on concentrated on. This determines which version of the JDE to apply, which in flip determines which version of the JDK to put in.

the general rule is this: continually use a JDE model identical to or less than the OS model you're focused on. as an instance, if you're concentrated on OS 4.three you may use JDE four.zero, 4.1, four.2 or four.three to expand your utility, however not four.5, four.7 or five.0. (The JDE variations skipped four.four., 4.6, four.8 and four.nine, via the way.) This isn't a strict rule, because you could every now and then use a later JDE version to build packages that paintings on older OS variations, however RIM does not guarantee that the ones packages will work or that they will even load on earlier OS versions. (They without a doubt might not load if you use an API that is not supported within the older versions.) To be secure, then, you'll always want to use the appropriate JDE version for the very last builds of your application, even if you use a one of a kind JDE model for intervening time development. (There are a few great functions inside the newer JDE variations, in the end.)

as soon as you've decided which JDE to apply, download and deploy the suitable version of the JDK. For JDE versions 4.0.2 and previous, JDK 1.four is needed. For JDE variations four.1 to 4.2, use JDK 1.five. For variations 4.3 and higher, JDK 1.6 is required. you can down load the perfect JDK from the sun Microsystems website. (notice that JDK versions 1.four and 1.5 are quite vintage now and are not officially supported through sun, but they are nevertheless to be had for download and are required with the aid of the older JDE versions.)

After putting in the proper JDK, download and install the desired JDE from the BlackBerry developer website. you may want to sign in for a loose account on the website. remember to enroll in RIM's BlackBerry developer software whilst you're at it.

different variations of the JDK and the JDE can co-exist at the equal gadget with out a problem if you deploy them in the proper order: JDK 1.4 first, followed through JDE four.0; JDK 1.five observed by way of JDE four.1 to 4.2; JDK 1.6 accompanied by way of the final JDE variations. otherwise you'll need to adjust the paths used by the extraordinary batch and executable files inside the JDE to apply the proper JDK version -- a bit of a trouble, virtually, however not tough to do at all.