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Question about APDU

JavaCard Applet Development Related Questions and Answers.
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Question about APDU

Post by colkif » Sun Oct 08, 2017 8:52 pm

I have downloaded the new JCIDE. And it's an excellent tool for java card developers I think.
But when I program my Hello world applet, I have two questions.

- Where will be the bytes sent if we used the method APDU.sendBytes() ?
- From where APDU.getBuffer() retrieves bytes?

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Re: Question about APDU

Post by mabel » Sun Oct 08, 2017 9:18 pm

A1: Method sendBytes() causes the card to send a number of bytes to terminal from current APDU buffer.
A2: Method getBuffer() returns a reference to a byte array buffer contained command data sent from terminal to the card.

If you use JCIDE to run your applet, you may communicate with the simulator.

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