import java.io.*;
import java.math.BigInteger;
import java.util.*;
import javax.smartcardio.*;
import javax.swing.JOptionPane;

import java.util.List;
 
 
public class SmartCardTest   {
 
  static CardTerminal terminal = null;
  static CardChannel channel;
 
public static void main(String[] args){
    try {
 
        // show the list of available terminals
        TerminalFactory factory = TerminalFactory.getDefault();
        List terminalList = factory.terminals().list();
 
        //List numbers of Card readers
        for (int i=0;  i < terminalList.size(); i++){
        	System.out.println("CardReader N