System.err.println("Usage: " + FindExamples.class.getName() + " <results file>");
System.err.println("Usage: " + FindExamples.class.getName() + " [-category <category>]" + " <results file>");
	public static void main(String[] argv) throws Exception {		if (argv.length < 1) {			System.err.println("Usage: " + FindExamples.class.getName() + " <results file>");			System.exit(1);		}		DetectorFactoryCollection.instance(); // load plugins		for (int i = 0; i < argv.length; ++i)			scan(argv[i]);	}