public static void main(String[] args) {
        String count = "unknown";
        switch (args.length) {
            case 0: count = "zero"; break;
            case 1: count = "one"; break;
            case 2: count = "two"; break;
        }
        
        switch (args.length) {
            case 200000: count = "two million"; break;
            case 100000: count = "one million"; break;
            case 300000: count = "three million"; break;
        }
        
        System.out.println(count);
        
        System.out.println(chooseGreeting("Java"));
        
        for (int i = 0; i < 100000; i++) {
            chooseGreeting("Java");
            chooseGreeting("Scala");
            chooseGreeting("Ruby");
        }
        
        for (int i = 0; i < 100000; i++) {
            chooseGreeting("Java");
            chooseGreeting("Scala");
            chooseGreeting("Ruby");
        }
    }