running a fortran program in tomcat

[dasaxena1]

hi there

i have a fortran program to run on the server
so i wrote a java class which i instantiate from the JSp page
this java class uses runtime.exec to call the fortran exe
but the problem is that the current directory for tomcat execution is different than the fortran program
and the fortran program depends on some files

is there a way to change the default working directory of tomcat