Java Card 2.2.2 draft is out for public review

A draft for the upcoming release of the Java Card Specification is available for public review.
The Java Card 2.2.2 Specification will provide numerous enhancements to the award-winning Java Card platform. In particular it will include specific support for contactless communication and ID cards :
* enhancements to ease the management and increase interoperability of contactless cards.
* additional cryptography and security features
* utility APIs for memory-efficient applet development
Java Card technology v2.2.2 is ready for the next generations of smart card standards, and is fully backward-compatible with previous versions.
New features in Java Card 2.2.2 :
* Utility APIs for TLV, BCD, short, int
* ISO7816-based Extended length APDU support
* Support for up to 20 logical channels
* External memory access API
* Multiple Interfaces management
* Additional cryptography algorithms : HMAC-MD5, HMAC-SHA1, SHA-256 and Korean Seed
* Signature with message recovery
* Partial message digest
* Standardized Biometrics API
Please direct your comments on this draft at [email protected] Feedback received before December 15th will be considered for the final version of the specification. For more information on the Java Card Platform Specification v2.2.2, Public Review Draft, refer to the release notes on http://java.sun.com/products/javacard/RELEASENOTES_jcspecsp.html

The Installer and the Applet Deletion Manager are implemented in the JCRE and GlobalPlatform. On-card the Card Manager manages the content management, communication and the related security. JCRE specifies how it has to handle installation and deletion, but leaves room for different implementations. To the outside world, on a GP card, the Installer/ADM is the Card Manager with a specific AID.
Installer and ADM are optional. For instance a Java Card Static product does not need an Installer/ADM.
JCOP cards have the Installer/ADM fully implemented. It uses the GP functionality. The CM has to be selected to install or delete a package/applet.

Similar Messages

Java card confusing Issues!!!!!!! java card architecture, advantage!!!!!

QUESTION -1
As I know about architecture of any application is -
                //normal java software                          java card                                  java card
                  // 1                                               2                                      3
1-            application program                        host application                           host application
2-                     JVM                                   Applets                                       Applets
3-              operating system                JCRE(which contain all classes, JVM ....)                 JCRE(act as a O.S too)
4                    hardware                              Operating system                                 H/W
5                                                                        hardwareWhat do u think- case 2 is right? or 3 is!!!!!!!!!!!
I think - case 3 is right!!!!
As i study from several sources , JCRE is complete package - it behaves as a operation system and use the functionality of component it contain. I also think if i will purchase a java card from any vendor , it would have JCRE inside it (means everthing inside it,), i only need to develop the applet according to my requirement and install it by on card installer program
QUESTION 2- what is the advantage of java card.?
// I think.
as i read out , i got the line that it is platform independent and support multiple application. applicaton point of
view , I am agree but how it is platfrom independent. if we use java card for smart card development, then
i will purchase Java card from differnt vendor , all will provide me card with supported jcre inside it, so why
this is advantage here?
// in case of window based application , it really make sense because if i will make any window application with java
// i can run it in windows , linux , unix and most of os flavours, here i can see the beauty of java language.
Clear me this and add some other java card advantages, which make java card goodquestion 3-
Now I am capaple to make simple applets, so I want to check the entire java card process atleast once before
going in deep of something, I am thinking to implement prepaid card concept , i made it applet for it ,it will
contain a page with 2 text box ( 1- for recharge 2- for money deduction ) and two button , with button click i
want to select the applet and want to pass the apdu.
( a) how i can make host window application ? (i think awt will work for me? , *
i never make any java window application yet) *
( b) still i dont have any java card , i want to make it by using simulator, is it possible?
(c) in this scenario what framework i need to study Ex. Import javacard.framework.* for making
applet or from where i need to start.Regards:
rohit pathak
Edited by: rohit pathak on Feb 9, 2012 10:10 PM

Hi,
QUESTION -1
As I know about architecture of any application is -
//normal java software                          java card                                  java card
// 1                                               2                                      3
1-            application program                        host application                           host application
2-                     JVM                                   Applets                                       Applets
3-              operating system                JCRE(which contain all classes, JVM ....)                 JCRE(act as a O.S too)
4                    hardware                              Operating system                                 H/W
5                                                                        hardwareWhat do u think- case 2 is right? or 3 is!!!!!!!!!!! If you are using Java Card then JCRE+JVM = OS and if you put this on ein package 3 then 3 is correct according to me.
As i study from several sources , JCRE is complete package - it behaves as a operation system and use the functionality of component it contain. I also think if i will purchase a java card from any vendor , it would have JCRE inside it (means everthing inside it,), i only need to develop the applet according to my requirement and install it by on card installer program Actually it depends. There can be following models in this regards:
1. Buy a empty smart card, Install your own OS and then write your applets for it.
2. As you said, Buy a card with preloaded OS and then write applets for it.
QUESTION 2- what is the advantage of java card.?
* Interoperable: Applets developed with Java Card technology will run on any Java Card technology-enabled smart card, independently of the card vendor and underlying hardware.
* Secure: Java Card technology relies on the inherent security of the Java programming language to provide a secure execution environment. Designed through an open process, the platform's proven industry deployments and security evaluations ensure that card issuers benefit from the most capable and secure technology available today.
* Multi-Application-Capable: Java Card technology enables multiple applications to co-exist securely on a single smart card.
* Dynamic: New applications can be installed securely after a card has been issued, enabling card issuers to respond to their customer's changing needs dynamically.
* Compatible with Existing Standards: The Java Card API is compatible with international standards for smart cards such as ISO7816, or EMV. Major industry-specific standards such as Global Platform and ETSI refer to it.
* Developers creating Java Card applications enjoy all the advantages of working in the Java programming language:
Object-oriented programming yields greater code modularity and reusability, leading to higher programmer productivity.
Protection features characteristic of the Java programming language apply to Java Card applets, enforcing strong typing and protection attributes.
Powerful off-the-shelf development tools are readily available.
source: http://java.sun.com/javacard/overview.jsp
And also, in case of SIM card if you are using java card then RAM is possible and native cards don't have this ability.
question 3
Now I am capaple to make simple applets, so I want to check the entire java card process atleast once before
going in deep of something, I am thinking to implement prepaid card concept , i made it applet for it ,it will
contain a page with 2 text box ( 1- for recharge 2- for money deduction ) and two button , with button click i
want to select the applet and want to pass the apdu.
( a) how i can make host window application ? (i think awt will work for me? , *You can use swing for this to make interface and use smartcardIO http://docs.oracle.com/javase/6/docs/jre/api/security/smartcardio/spec/javax/smartcardio/package-summary.html for sending APDUs.
i never make any java window application yet) * It is easy you can look here and start: http://www.roseindia.net/java/example/java/swing/
( b) still i dont have any java card , i want to make it by using simulator, is it possible?Actually, smartcardIO will only interact with actuall card and for simulator you will have to use console for sending APDUs.
(c) in this scenario what framework i need to study Ex. Import javacard.framework.* for making
applet or from where i need to start.For your current case it is enough and for host app you should study smartcardio as i mentioned above.
Hope it helps.
Regards
Umer

Why do we need IDE or tools for java card programming?

Hi,
I am a newbie to java card, using java card kit tools themself, we can test and burn the code into card right?
then why do we need IDE for java card, please correct me , if i am wrong,
Thanks in advance,
Sri.

Dear Sri,
We have compiler, linker etc for every language starting of from C or C++ or Java. JDK has all the tools necessary to develop and run a Java program. Similarly Java Card Development Kit has all the tools for developing and deploying a Java Card applet. But what an IDE does is too integrate all these tools and make it easier for the JavaCard programmer to develop his applets. Just like Eclipse is used for Java applet development.And not everytime the code is burned to the card. Its only during masking code is burned to the card, i.e if u can call it burning. Masking makes an applet permanent on the card.

NetBeans java card platform

Dear All,
I need a java card simulator to debug my java card applet code.
I try to use Java Card Platform on NetBeans IDE 7.1 for debugging purpose. After successfully building the applet and loading it onto the simulated card environment I try to select the applet instance using the following command through the Console.
select //aid/3F564379F5/00279CD982
in response I receive the following error.
"Connection reset by peer: socket write error"
Is anyone using Java Card Platform for debugging? I would be very happy to hear how to resolve this problem.
Thanks in advance!
Cheers!
Mehmet

Mehmet wrote:
Hello Rohit,
If you download the Java Card Development Kit (http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javame-419430.html#java_card_kit-2.2.1-oth-JPR)
you will have a set of sample java card applets to use.
You can use JPShell to download the cap files(compiled applet) onto the card and send ADPU to the card to see if you get correct response.
Following link provides all the information to set up the environment and start developing java card applets using NetBeans IDE and GPShell.
https://minotaur.fi.muni.cz:8443/~xsvenda/docuwiki/doku.php?id=public:smartcard:javacardcompilation
I hope this can help.
MehmetI already have , Netbeans 7.1 and now i have gpshell 1.4.4 ,i think netbeans is capable to making .cap file, did you mean that with use of gpshell i can connect with java card through reader? gp shell would work stand alone or we need to set this to netbeans? i read the link which u passed to me, it seems very good but "it seems very tough to implement" . HELL IS WAITING FOR ME... KIDDING DEAR,
one last thing, anything other than net beans { here we create applet and it automatically create cap file} and gp shell are require to load applet onto the card? OR these is enough to implement wholo java card application- I asked this because i get the term JCOP and etc when i read uploading applet to card.
anyways thanks for your help.

Java card ISO 7816 file system

Hello
Java Card technology dose`t provide core APIs for ISO file system.Is there any mechanism for creating DF and EF on java cards.If there is,please guide me.Is there any sample code for this subject at sun.com?I want to creat DF and some EF on a java card and then manage them.How I can do it?Please guide me.
Best
[email protected]

JavaCard doesn't contain a file system. It's been repeated in this forum over and over. How many times does this have to be answered ? Have you searched to forum prior to asking ?
For JavaCard there isn't a need for a filesystem because of the power of having a language on the card. Also byte arrays with a TagLengthVariable (TLV) do the job just fine.

How to find out memory of a java card

is there anyone could tell me that how can we check the size of the memory of a card? thank you in advance:D

If the card is a Java Card 2.2.1, create an applet that returns
JCSystem.getAvailableMemory(), install and queryit.
Some other ideas for getting the free memory on card were presented in the thread "Java Forums - Free memory on card"
http://forum.java.sun.com/thread.jspa?threadID=647894&tstart=30
Jan

Need suggestion regarding simulation of Java Card using a floppy

Hi All,
I am working on a project wherein I have to simulate a Java Card application using a floppy. I am writing my own Card Terminal and CardTerminalFactory. Thats what I have started working on. Will that serve the purpose or do I have to think about some other approach like just overriding the cardInserted method of CTListener class? I want to achieve communication between the host application and the floppy(which is my java card) Please advise.
I would like to thank DurangoVa and Nilesh for helping me out sorting out the error in running the converter.
Thanks in advance

Are you referring to a Floppy diskette drive ?

How do I test a Java card applet with different AIDs on the fly?

... Like sweeping cards from employees in a queue of people lining up in the morning?
When I created my applet, the aid is a fixed value inside the class.
Whenever I wanted to test it with another value, I changed that AID and rerun the applet.
I find it very cumbersome that needs to be rerun and rerun, over and over again.
How do I test the applet easily with any values of AIDs that I'd like to put in, on the fly.
I know I can't simulate the sweeps of card in the applet because I can't have a main method with a signature
of Strings[] args or String[] args. I can only have JUnit to help me out, but still java card doesn't allow either
main(Strings[] args) or TestCase to inherit from.
Thanks
Jack

your question is hard to understand but:
an applet always has one definite AID and you cant change it after install as far as i know
a) you want to test many cards with diffrent AIDs?
->send a list of select commands and check the return values
b)you want one card with the same applet to be available for many AIDs?
->install many dummy applets forwarding the commands to one core applet
c)i think i didnt get your point :/

How to load a java card applet into a java card

Dear All,
I am a novice to java card technology..
I have done some search on how to load a java card applet into a smart card but haven't found a satisfactory answer. I have read about installer.jar and scriptgen tool but I want to load the applet from a java program and not from command line. It would be of great help if somebody can help me out.
If somebody can share a sample program which load a javacard applet(.CAP file) into a smart card, I will be very thankful.
I am able to find some client applications which help us send APDU commands and recieve response APDU's to interact with an applet loaded on to the smart card but not application which actually load the applet.
I have heard of OCF and GP.. some say that OCF technology is outdated and no longer in use.. can somebosy throw some light on this too..
cheers,
ganesh

hi siavash,
thanks for the quick response.. i checked out GPShell as suggested, it looked like a tool by which one can load an applet on to card and send some sample apdu commands... but I want to load the applet from the code.
My application should look something like this.. it will be a swing applicaton where I have a drop down with a list of readers, I select the one desired and then click on "LOAD" after inserting a blank java card, at this point my applet which is stored in my DB should get loaded on to the java card. The next step should be to personalize it where I enter the values for the static variables of my applet and click "PERSONALIZE", at this point all these values should be embedded into APDU commands and sent to the java card for processing.
For achieving this I am yet to find a comprehensive sample or documentation on the net.
Please help...
regards,
ganesh

How to create a java card library (jar file to be used in other programs)

Hi all,
I am working on JCOP and writing quite a bit of applets for the java card . Now i have lots of code that could be reusable for example sending SMS, encryption routine, etc.. So this part of the code i want to put into a utility class and create a package out of it. This utility package i must be able to import into my programs what i write.
I tried the normal way of creating the jar by renaming the CAP file of the utility class, also tried including the /javacard/* files also into the jar file as indicated by sfarmer(active forum member here). But none seems to work. I tried contacting NXP folks and they indicated that it may be possible only by way of Sharable Objects.
But some how i am not convinced why i should use Sharable object for this. So if any one can throw some light into this regard it will be immensely helpful to me and my project.
Regards
Prakash

Hi,
Well the variable defined are as below
public static byte[] msgdata = new byte[255];
private static final byte[] HEADER_TEMPLATE = {
          (byte) 0x81, (byte) 0x03, (byte) 0x01, (byte) 0x21, (byte) 0x00, // Command details tag
               (byte) 0x82, (byte) 0x02, (byte) 0x81, (byte) 0x02, // Device Identities tag
               (byte) 0x8D, // Text String tag
               (byte) 0x00, // length
               (byte) 0x04, // Text String tag
the msgdata is declared public so that i can access this as a Class member in my other program doing Utilities.msgdata. But the problem is now that if i dont declare it as final then the compiler gives me the below error
"library has initialized array for non-final, non-static field Utilities, msgdata, [B, attr jc-field: tok 0, public static"
If i make it final then i cannot change it... So now i am stuck..
Any help will be highly appreciated...
Regards
Prakash

Java Card Please Help!

Please I am doing my final year project on secure mobile application using Java Card Technology.
I need to write and an application that can send SMS on a SIM card to another SIM card with the same application. The application will have a server side which manage the storage of messages and at the same time communicate information to the client on the SIM remotely. I am suppose to use wi-fi (TCP/IP) for transmission.
Can anybody please give me ideas and possible working codes and simulators.
I mean step by step procedure of how to start.
THANK YOU.

Hi,
I found the following resources helpful when starting out in JavaCard.
JavaCard documentation:
Java Card Technology for Smart Cards: Architecture and Programmer's Guide (Book)
http://java.sun.com/docs/books/javacard/index.html
JavaCard specifications:
http://java.sun.com/products/javacard/specs.html
Global Platform specifications:
http://www.globalplatform.org/specificationview.asp?id=card
Communication between SmartCards and terminals is based on ISO 7816 part 3 and 4 so if you�re completely new to the SmartCard environment it may be helpful getting an overview regarding these specifications. Unfortunately these specifications are not free, they�re available from.
http://www.iso.org/iso/en/ISOOnline.frontpage
Software:
The basis for all development is the JavaCard and Java Development kits.
Java Development Kit
http://java.sun.com/j2se/1.4.2/download.html
JavaCard Development Kit
http://java.sun.com/products/javacard/dev_kit.html
Full installation instructions can be found in JCDevKit_User_Guide.pdf which is contained in the JavaCard Development Kit distribution.
Several companies provide IDE�s that will aid you in developing and deploying applets to JavaCard.
For example:
Aspects Developer
http://www.aspectssoftware.com/devtools/index.html
There are others out there as well. You may need to also buy physical sample cards; however, the IDE�s usually have simulators built in.
Hardware:
To interact with physical cards you�ll require a PCSC compatible card reader.
Omnikey
http://www.omnikey.com/
GemPlus
http://support.gemplus.com/gemdownload/readers/index.aspx
Hope this helps.
Cheers,
Alasdair

Java Card Applet Development

Please I am doing my final year project on secure mobile application using Java Card Technology.
I need to write and an application that can send SMS on a SIM card to another SIM card with the same application. The application will have a server side which manage the storage of messages and at the same time communicate information to the client on the SIM remotely. I am suppose to use wi-fi (TCP/IP) for transmission.
Can anybody please give me ideas and possible working codes and simulators.
I mean step by step procedure of how to start.
THANK YOU.

1. Good.
2. I suggest you start testing using the simulator, however if you want to test directly on the card at once, select your card reader using the /term command and use the commands as described in help to start sending APDUs to the card.
3. This is not a part of the JCOP tools for eclipse (which is developed by IBM and maintained by NXP), but part of the JavaCard development toolkit developed and maintained by Sun. See http://java.sun.com/products/javacard/dev_kit.html.
4. Read the above. None of this is part of JCOP tools for eclipse.
5. As far as I know, there is no independent newbie guide for JCOP tools, but I would check out the help function included in the tools themselves if I were you.
Good luck!

How to ensure applet is written in java card?

Hi all,
I have written a java card applet, in which i am using the Biometry API of java card to enroll a fingerprint template in java card. Code is attached below:
package classicapplet1;
import javacard.framework.*;
import javacardx.biometry.BioBuilder;
import javacardx.biometry.OwnerBioTemplate;
import javacardx.biometry.SharedBioTemplate;
import javacardx.biometry.BioException;
public class JavaBiometrics extends Applet implements SharedBioTemplate{
        public final static byte CLA = (byte)0xCF;
     public final static byte INS_ENROLL = (byte)0x10;
     public final static byte MATCH_TRY_LIMIT = (byte)3;
     public final static byte INVALID_DATA = (byte)0x77;
     public final static byte ERROR_MATCH_FAILED = (byte)0x9101;
     public static final byte CARD_ENROLL_SUCCESS = (byte)0x9000;
     public static final byte CARD_ENROL_FAILED = (byte)0x6900;
     private OwnerBioTemplate bio_temp;
     * Installs this applet.
     * @param bArray
     *            the array containing installation parameters
     * @param bOffset
     *            the starting offset in bArray
     * @param bLength
     *            the length in bytes of the parameter data in bArray
    public static void install(byte[] bArray, short bOffset, byte bLength) {
        new JavaBiometrics(bArray, bOffset, bLength);
     * Only this class's install method should create the applet object.
    protected JavaBiometrics(byte[] bArray, short bOffset, short bLength) {
    byte aidLen = bArray[bOffset];
          if(aidLen == (byte)0)
               register();
          else
               register(bArray, (short)(bOffset+1), aidLen);
          bio_temp = BioBuilder.buildBioTemplate(BioBuilder.FINGERPRINT, MATCH_TRY_LIMIT);
public boolean select()
return true;
     * Processes an incoming APDU.
     * @see APDU
     * @param apdu
     *            the incoming APDU
    public void process(APDU apdu) {
        //get the incoming APDU buffer
     byte []buffer = apdu.getBuffer();
     //Get the CLA; mask out the logical-channel info
     buffer[ISO7816.OFFSET_CLA] = (byte)(buffer[ISO7816.OFFSET_CLA] & (byte)0xFC);
     //If the INS Select, return -no need to process select
     if(buffer[ISO7816.OFFSET_CLA] == 0 && buffer[ISO7816.OFFSET_INS] == (byte)(0xA4))
          return;
     //If unrecognized class, return "Unsupported class."
     if(buffer[ISO7816.OFFSET_CLA] != CLA)
          ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
     switch(buffer[ISO7816.OFFSET_INS])
     case INS_ENROLL:
          enroll(apdu);
          break;
     default:
          ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
public void enroll(APDU apdu)
        byte[] buffer = apdu.getBuffer();
        short bytesRead = apdu.setIncomingAndReceive();
        bio_temp.init(buffer, ISO7816.OFFSET_CDATA, bytesRead);
        bio_temp.doFinal();
    public Shareable getShareableInterfaceObject(AID clientAID, byte parameter) {
        return this;
///////////// These methods implemets the ShareableBio interface///////////////
public boolean isInitialized() {
        return bio_temp.isInitialized();
    public boolean isValidated() {
        return bio_temp.isValidated();
    public void reset() {
        bio_temp.reset();
    public byte getTriesRemaining() {
        return bio_temp.getTriesRemaining();
    public byte getBioType() {
        return bio_temp.getBioType();
    public short getVersion(byte[] dest, short offset) {
        return bio_temp.getVersion(dest, offset);
    public short getPublicTemplateData(short publicOffset, byte[] dest, short destOffset, short length)
            throws BioException {
        return bio_temp.getPublicTemplateData(publicOffset, dest, destOffset, length);
    public short initMatch(byte[] candidate, short offset, short length) throws BioException {
        return bio_temp.initMatch(candidate, offset, length);
    public short match(byte[] candidate, short offset, short length) throws BioException {
        return bio_temp.match(candidate, offset, length);
Problem :
I have developed this program in Netbeans using java card plug ins. when i am running this program, all the required CAP files and EXP files are generated.
Now, i have to write this applet on java card through a card reader. My card reader is installed in an embedded system GeoAmida with IP 192.133.133.2 and port number 6789.
I have used the following settings for my java card device in Netbeans:
Host : 192.133.133.2
Server URL: http://192.133.133.2:6789/
Card Manager URL: http://192.133.133.2:6789/cardmanager/
HTTP port: 6789
The output shows me that Instances of this program has been successfully has been created on java card.
But the problem is how can i ensure that my applet is been successfully installed on the java card?
The code of host application program, accessing the developed java card applet is given below (it is written in C):
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <smartcard.h>
int main()
     int ret, i, smartcard;
     unsigned char applet_id[100], apdu_len, apdu[300],response[300]={0};
     smartcard_info *context;
     smartcard=CONTACTLESS;
     //smartcard=CONTACT_BOT;
     if((context = smartcard_init(smartcard)) == NULL){
          printf("Smartcard Initi. Failed\n");
          return 0xBB;
     /* checking for smartcard */
     while (1){
          if(ret=smartcard_is_present(context, smartcard)!=0)
               sleep(1);
          else
               break;
     printf("Selecting Applet \n");
     i = 0;
     applet_id[i++]=0x00; applet_id[i++]=0xA4; applet_id[i++]=0x04; applet_id[i++]=0x00; applet_id[i++]=0x06;
     applet_id[i++]=0xA9; applet_id[i++]=0xBF; applet_id[i++]=0xA2; applet_id[i++]=0xB6; applet_id[i++]=0xB1; applet_id[i++]=0x3E; applet_id[i++]=0x7F;
     if ((ret=smartcard_select_applet(context, smartcard, applet_id, i))!=0){
          printf("select applet failed %02x\n",ret);
          return ;
     printf("Applet Selection Success \n");
#if 1
     i=0;
     apdu[i++]=0xCF; apdu[i++]=0x10; apdu[i++]=0x04; apdu[i++]=0x04; apdu[i++]=0x7F;
     //apdu[i++]=0x3F; apdu[i++]=0x00;
     apdu_len = i;
     printf("Sending APDU command\n");
     if ((ret=smartcard_apdu(context, smartcard, apdu, apdu_len, response))!=0){
          printf("apdu failed %d\n",ret);
          //return;
     }else
          printf("APDU Success\n");
     //printf("\n");
#endif
     smartcard_deinit(context);
     return 0;
}The output of this program is showing me that applet is been successfully selected, but APDU selection failed. Please solve this problem as soon as possible, because my project is deadline is not very much far.
Thanks in advance.
Mukul Gupta

Hi Shane,
I am getting error 6a86 which means that value of P1 is less than 1 or more than 8, and we have to change its value to any in between 1 to 8. I did that also but error still remains :(
Please tell me what is reason behind this error. And, i'll try out your previous solution today, Thanks for it.

How do I start developing Java Card?

I have downloaded java_card_kit-2_2_1and OCF 1.2. Is there any tools require for Java Card development that I missed out? The demo1, demo2 and demo3 was try to run but I still don't understand how do I can create a Java Card Smart Card. I want to develop a Java Card Smart Card for employee to take their attendance. The employee ID will be the a MUST in the Java Card Smart Card.
Please provide me guidance and help me out. Thank you in advance.

I�d like to ask you guys where can i buy a Java Card
compliant smart card in the Web.
Based on your experience, which is the best one to
start with? (Gemplus, Schlumberger...)
Thanks in advance. (All this sounds really exciting)I am also a student and doing a final year project which uses smart card. I am using a Schlumberger (now is known as Axalto) Cyberflex 32K e-gate card and SDK 4.3 (the latest version is 4.5 if i'm not mistaken).. some say that the SDK is a bit buggy.. well, I dont have much choice because that is what my faculty gave me.. I admit that there are some bugs but until now, it doesn't give me too much of a trouble.
if you intend to buy their smart card, they have a wide range of it.. you can surf the available smart card here: http://www.axalto.com/products/smartcards.asp

Is the Java Card Platform supports the unnamed package?

1.agree
Virtual Machine Specification for the Java Card� Platform, Version 2.2.1 chapter 2.2.2.1:
"packages in the Java Card platform are used exactly the way they are in the Java platform."
That means the Java Card platform also have two type package,named package and unnamed package.
2.against
Development Kit User�s Guide for the Java Card Platform, Version 2.2.1 chapter Running the Converter:
"Command line usage of the Converter is:
converter [ options] <package_name> < package_aid> < major_version>.
< minor_version>"
The above formula tells us that the <package_name> is a MUST Line Arguments of converter.But if we create a unnamed package,how should we express it?
3.against
first,How a real JCVM intall/organize the unnamed packages?
second,In a real JCVM run-time environment,all java items(include attribute,method and soon) refered by the suit of package+class+item.In this condition,the item in a nunamed package cannot offers the package and is never refered.
I have been botherd by the above 3 boresome and opposite points for some time and cannot give out the key of the question.
Can some one give me some ideas?
thx!

Sun's kit is free. There is a reference implementation of the JC Runtime environment with the kit.
You of course can't load that onto a card. And even if you had the RE, you won't be able to load onto a card because the RE is burned into the ROM which you don't have low level access to.
Read the JCRE specs that come with the kit

Java Card 2.2.2 draft is out for public review

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