?? smartcardtest.java
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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
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