how to use arabic content in jasper report

I have tried to export jasper report with in the aracbic content through java program. I have set the locale [arabic] in jasper page and also set the locale in 开发者_开发百科my java program. But i can't get the arabic data in my report. It Shows the arabic datas are ?????????????. So anybody guide me for the further steps?.

Thanks in Advance Regards zita

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exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "UTF-8");