defining own exception

[javaplus]

Hi,

I want to create my own Exception. For instance if string a has value "default" in it, it is perfectly fine with Java. But in my application it is not allowed. So I want to raise an exception at this point:

Code:

String str = "default";

How to define my own exception?

Cheers-

[hardwired]

Creating Exception Classes

[javaplus]

Thanks. I will go through it and will post queries if I have any.