Problem in File Validation using C#

Question

hello friends,

i have really very big problem . well i m making customize software in Windows Application ... almost i have done it but the problem is that i have other application which is made on java application i want to use this application in my software or windows application means i want to call java's application in my windows application is it possible or not ..... if you have any idea than let me know i really need your help i will appreciate..............

thanks in Advance