How do I exit a java program based on condition can i use system.exit

I have java program that is called by another program that I dont have control on. My program returns a bigdecimal... but if the ordernumber is empty in my program i dont wnat to do anything.. does system.exit work in that condition... i put it int he else if ordernumber is empty condition.. but i dont think that is the right approach..

When software module is expected to bring some result, it should bring the result, positive or negative. I think you should check what your counterpart software expects as positive or negative result. And then implement your software this way. You can use System.exit, but this call is employed usually to indicate status with the software after it's completion and not to return any resulting value.
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#exit(int)

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gavas_java_nov26_exception wrote:
If i use System.exit(0) in the try block or catch block will finally block will be executed?
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SendMessage(): sample application.
Using jSMSEngine API 1.2.6 (B1)
org.jsmsengine.CService@addbf1
0
-101
Connection to mobile failed, error: -101
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come back in about 5 years, we may have time for you by then.
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