Java by API/java.security/PrivilegedAction

implements PrivilegedAction

   <source lang="java">
 

import java.io.File; import java.security.PrivilegedAction; class CountFilesAction implements PrivilegedAction {

 public Object run() {
   File f = new File(File.separatorChar + "files");
   File[] fArray = f.listFiles();
   return new Integer(fArray.length);
 }

}

 </source>