public static void main(String[] args) {
    }

System.out.println();

System.out.println("args = " + Arrays.deepToString(args));

System.out.println("args = " + args);

System.err.println();

for (int i = 0; i < args.length; i++) {
            String arg = args[i];
        }

for (int i = args.length - 1; i >= 0; i--) {
    String arg = args[i];
}

for (String arg : args) {
        }

for (int i = 0; i < list.size(); i++) {
            Object o =  list.get(i);
        }

while (iterator.hasNext()) {
            Object next =  iterator.next();
        }

if (args == null) {
        }

if (args != null) {
        }

if (args == null) {
            args = new String[] ();
        }

args[args.length - 1]

// TODO: 2022/4/5