Converting base clas to derived class

[Jothi Prasadh]

Hi,

I have a class A which has two subclass B and C.A is associated with a class D.but if i want to store the B objects in D.How can i store B/C objects in D..

Thanks,
Anandh

[Ernest Friedman-Hill]

Hi,

Welcome to JavaRanch!

You'll have to be a bit clearer as to what you're asking here; what does "is associated with" mean, exactly?

But perhaps it would help you to know that any method that accepts an A as an argument will automatically accept a B or a C, and any variable of type A can, again, automatically, refer to a B or a C, if you make the assignment.