How to implement host application

[Matte]

Due to my work requirement, I need to implement a host application that uses reader without PC/SC driver.

And I know that there are two frameworks for working with smart cards:
a. javax.smartcardio
b. OpenCardFramework

By using any one of the above frameworks , is it possible to implement my own class for transmit-receive APDUs and use it instead of PC/SC routines?

[chico0609]

If you use serial port Reader, you could transmit and receive APDUs directly via RS232.
For USB reader, you could do same via USB API.