Properties p = new Properties();
FileInputStream fi = new FileInputStream("your.properties");
p.load((InputStream) fi);
String aaa = p.getProperty("SUMIT_CONFIG", "c:\\sumit\\");//add you code here
File file = new File(aaa + "\\config.xml");---your.properties
########################################################
# #
# sample properties file #
# #
######################################################### lets set SUMIT_CONFIG as c:\sumit\
SUMIT_CONFIG = c:\\sumit\\
FileInputStream fi = new FileInputStream("your.properties");
p.load((InputStream) fi);
String aaa = p.getProperty("SUMIT_CONFIG", "c:\\sumit\\");//add you code here
File file = new File(aaa + "\\config.xml");---your.properties
########################################################
# #
# sample properties file #
# #
######################################################### lets set SUMIT_CONFIG as c:\sumit\
SUMIT_CONFIG = c:\\sumit\\
java.version
java.vendor
java.vendor.url
java.home
java.vm.specification.version
java.vm.specification.vendor
java.vm.specification.name
java.vm.version
java.vm.vendor
java.vm.name
java.specification.version
java.specification.vendor
java.specification.name
java.class.version
java.class.path
java.library.path
java.io.tmpdir
java.compiler
java.ext.dirs
os.name
os.arch
os.version
file.separator
path.separator
line.separator
user.name
user.home
user.dir