for (int i=0; i < args.length; i++) {
try {
URL u = new URL(args[i]);
URLConnection uc = u.openConnection();
for (int j = 0; ; j++) {
String header = uc.getHeaderField(j);
if (header == null) break;
System.out.println(uc.getHeaderFieldKey(j) + ": " + header);
} // end for
} // end try
catch (MalformedURLException e) {
System.err.println(args[i] + " is not a URL I understand.");
}
catch (IOException e) {
System.err.println(e);
}
System.out.println();
} // end for
