Constructors and Exceptions?

[Abhi vijay]

Can constructors throw Exceptions?? Why is it said that the no-arg constructor of the superclass, must not throw an exception??

[Campbell Ritchie]

Yes, of course they can throw exceptions. Where did you get that from about not allowing exceptions from no-arg constructors? I couldn't find it in the Java Language Specification.

[Rob Spoor]

Also, any superclass constructor can throw an exception. The only limitation is, the subclass constructor can't catch that exception so it must throw it as well.

[Abhi vijay]

If the subclass has a default constructor and it calls the super constructor which throws an exception, then it will lead to compiler error, right???

[Campbell Ritchie]

You don't write a default constructor, so you can't catch it, so it would count as an unhandled exception and (if checked) would cause a compiler error.