How to write the system property list to some file?

Question

profile = new File("profile");
try {
    FileOutputStream outFile = new FileOutputStream(profile);
catch (Exception ex) {}
try {
    properties.store(outFile, "Property File");
}
catch (IOException e) {}
finally{
   try {
      outFile.close();
      outFile = null;
      profile = null;
   }
   catch (IOException e) {}
}