JavaCard OS

Posted: **Sat Dec 19, 2015 1:50 am**

This is a process method declaration followed by throws ISOException.

public void process(APDU apdu) throws ISOException 
    {
    ...
    }

Another process declaration line from the end of which I removed throws ISOException.

public void process(APDU apdu)
    {
    ...
    }

What is the difference between the two expression below? When must I use throws ISOException at the end of the declaration line?

Posted: **Sat Dec 19, 2015 4:17 am**

Please read this article first.
https://docs.oracle.com/javase/tutorial ... aring.html

And the ISOException

is an unchecked exception. including it in the throws clause is not mandatory.

ISOException is a RuntimeException:

public class ISOException extends CardRuntimeException {
public class CardRuntimeException extends RuntimeException {

When must I use throws ISOException at the end of the declaration line?