Indent c = new Indent();
switch(av.length) {
case 0: c.process(new BufferedReader(
new InputStreamReader(System.in))); break;
default:
for (int i=0; i<av.length; i++)
try {
c.process(new BufferedReader(new FileReader(av[i])));
} catch (FileNotFoundException e) {
System.err.println(e);
}
}