import javax.smartcardio.*;
import java.util.List;

public class Main {

    public static void main(String[] args) {
        try {
            // Display the list of terminals
            TerminalFactory factory = TerminalFactory.getDefault();
            List<CardTerminal> terminals = factory.terminals().list();
            System.out.println("Terminals: " + terminals);

            // Use the first terminal
            CardTerminal terminal = terminals.get(0);

            // Connect wit hthe card
            Card card = terminal.connect("*");
            System.out.println("card: " + card);
            CardChannel channel = card.getBasicChannel();


            // get the ATR
            ATR atr = card.getATR();
            byte[] baAtr = atr.getBytes();

            System.out.print("ATR = 0x");
            for(int i = 0; i < baAtr.length; i++ ){
                System.out.printf("%02X ",baAtr[i]);
            }

	    System.out.println();


            // Send Select Applet command
            //byte[] aid = {(byte)0xA0, 0x00, 0x00, 0x00, 0x62, 0x03, 0x01, 0x0C, 0x06, 0x01};
            //ResponseAPDU answer = channel.transmit(new CommandAPDU(0x00, 0xA4, 0x04, 0x00, aid));
            //System.out.println("answer1: " + answer.toString());

            // Send test command
            ResponseAPDU answer = channel.transmit(new CommandAPDU(0xFF, 0xCA, 0x00, 0x00, 0x00));
            System.out.println("answer: " + answer.toString());
            byte r[] = answer.getData();

		 String s = new String(r);
	    System.out.println("s: " + s + "| length" + r.length);
            for (int i=0; i<r.length; i++) {
                System.out.print("test" + (char)r[i]);
	    }
            System.out.println();

            // Disconnect the card
            card.disconnect(false);
        } catch(Exception e) {
            System.out.println("Ouch: " + e.toString());
        }
    }
}