BlackBerry JRE independent java coding

How can i develop BlackBerry JRE independent java code for an application. Here we have so many types of JREs for blackberry so i would like to run my code in all versions without having code modifications. For example, in iphone we use preprocessor statements to avoid versioning 开发者_运维技巧problem like that do we have any alternatives?

Thanks

venu

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There is a preprocessor for BB as well. See the docs for how to use it.