How to make the class files to run in a particular platform only

Class files which are created from the java files should only run on a particular platform only..say i'm going to create the class files for windows environment then those class files should only run on that environment only. it should not run on unix environment etc..how to do this..

hi,
i cant think of a reason why you would do something like that.. You cant prevent your class files to be read by the JVM of a different OS, but anyway you could do something to stop your code from running in a different OS, for eg.
Properties prop = System.getProperties();
if (prop.getProperty("os.name").startsWith("Windows")==true)
      //code
else
       System.out.println("Sorry i will not run in this OS");
}cheerz
ynkrish

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