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<h2>Java&#x2122; Smart Card I/O API</h2>

This specification describes the Java Smart Card I/O API defined by
<a href="http://jcp.org/en/jsr/detail?id=268">JSR 268</a>.

It defines a Java API for communication with Smart Cards
using ISO/IEC 7816-4 APDUs. It thereby allows Java applications to interact with
applications running on the Smart Card, to store and retrieve data 
on the card, etc.

<p>
The API is defined by classes in the package
<code>javax.smartcardio</code>. They can be classified as follows:

<dl>
<dt>Classes describing the corresponding Smart Card structures 
<dd>
<a href="ATR.html">ATR</a>, 
<a href="CommandAPDU.html">CommandAPDU</a>, 
<a href="ResponseAPDU.html">ResponseAPDU</a>

<p>
<dt>Factory to obtain implementations
<dd>
<a href="TerminalFactory.html">TerminalFactory</a>

<p>
<dt>Main classes for card and terminal functions
<dd>
<a href="CardTerminals.html">CardTerminals</a>, 
<a href="CardTerminal.html">CardTerminal</a>, 
<a href="Card.html">Card</a>, 
<a href="CardChannel.html">CardChannel</a>

<p>
<dt>Supporting permission and exception classes
<dd>
<a href="CardPermission.html">CardPermission</a>, 
<a href="CardException.html">CardException</a>, 
<a href="CardNotPresentException.html">CardNotPresentException</a>

<p>
<dt>Service provider interface, not accessed directly by applications 
<dd>
<a href="TerminalFactorySpi.html">TerminalFactorySpi</a>

</dl>


<h3>API Example</h3>

A simple example of using the API is:
<pre>
	// show the list of available terminals
	TerminalFactory factory = TerminalFactory.getDefault();
	List&lt;CardTerminal&gt; terminals = factory.terminals().list();
	System.out.println("Terminals: " + terminals);
	// get the first terminal
	CardTerminal terminal = terminals.get(0);
	// establish a connection with the card
	Card card = terminal.connect("T=0");
	System.out.println("card: " + card);
	CardChannel channel = card.getBasicChannel();
	ResponseAPDU r = channel.transmit(new CommandAPDU(c1));
	System.out.println("response: " + toString(r.getBytes()));
	// disconnect
	card.disconnect(false);
</pre>

<P>
@since   1.6
@author  Andreas Sterbenz
@author  JSR 268 Expert Group

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