java me - Blackberry Multiple OS version compatibility issue -

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i have developed chat application on blackberry os 5.0 client wants me make portable platforms 4.5 5.0 , above. have tried using preprocessor directives compile os compatible classes @ run time, haven't succeeded in yet. doubt way i'm using preprocessors. i'm putting example here:

//#ifdef jde_4_6_0_and_above /* //#endif  //some code  //#ifdef jde_4_6_0_and_above */ //#endif   //#ifndef jde_4_6_0_and_above /* //#endif  //alternative of code used above  //#ifndef jde_4_6_0_and_above */ //#endif

this way i'm doing particular part of code. logic here use first code if os version 4.6 , above...and use second code if os version below 4.6....

but code under preprocessors doesn't seem compile in either of case.

note: have put "//#preprocess" @ start of code , defined preprocessors in application descriptor xml file, still no luck. there other solution handling compatibility between bbos versions?

you placing code outside statements. ifdef , ifndef open statements, endif closes statement. can use #else have 2 cases.

//#ifdef jde_4_6_0_and_above  system.out.println("jde_4_6_0_and_above");  //#else  system.out.println("not jde_4_6_0_and_above");  //#endif

cheers

ray


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