User Defined Exception problem !

[Arun C. Giridharan]

 class IllException extends Exception
{
int m1(int x,int y) 
  {

int p=0;
if(x!=0 && y!=0)
       {
p=x/y;
return y;
        }
else
        {
throw new ArithmeticException();//"hello world_AExption");
        }
 
}
}
class DriveIllException
{
public static void main(String args[])
{
IllException a=new IllException();
a.m1(0,0);
}
}   

DriveIllException.java:1: warning: [serial] serializable class IllException has no definition of serialVersionUID


Well i don't understand this warning Message ..Could someone help me out!

[Abimaran Kugathasan]

I don't get any compilation errors. Check it again. BTW, what is the purpose of extending Exception?

[David Newton]

@Arun: It's not an error, it's a warning. Serializable classes are supposed to define a serialVersionUID (for deserialization).

@Abimaran: What's the point of extending exception? To provide application- or API-specific exceptions.

[Abimaran Kugathasan]

David Newton wrote:
@Abimaran: What's the point of extending exception? To provide application- or API-specific exceptions.

I mean here, in this program? :confused:

[Campbell Ritchie]

The IllException is not at all designed to extend an Exception. The point of providing your own Exceptions is to make handling them easier in your project. But that object is never used as an Exception.

[Abimaran Kugathasan]

I want to say in my last post that there is no need of extending the Exception in the OP's code.

[Arun C. Giridharan]

Campbell Ritchie is right!