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Message:

casting from a superclass to a subclass

Posted by tejinder singh on January 30, 2001 at 8:56 AM

if we cast from a superclass object to a subclass object e.g
class a{}
class b extends a
{}
class c
{
public static void main(String s[])
{
a a1=new a();
b b1=new b();
b1=(b)a1;
}
}
this gives a classcastexception at runtime however when we cast objects of class object to our own class there is no cast exception .kindly explain the same .kindly inform me at my email where i can look for the answer.

• Runtime reference matters Kishori Sharan January 30, 2001 at 7:47 PM (0)