Dynamic casting in java

Question

Hello everyone....
i am having a problem as follows:
i have a method in my project which is taking a reference of object type...
i want to cast the object to the passing type,bt i dont want to cast explictily inside the method...
can something be done by which the object itself get casted to passing type automatically by determining the runtime of the instance being passesd at runtime?
public void change(Object o)
/// i want to cast this object to A type without explicit casting.... can it be done through reflection or some other method?
call of the above method from main///
p.s.v.main(String[] args)
A a =new A();
a.call(new A());
}

Answer 1

807784 wrote:
can something be done by which the object itself get casted to passing type automatically by determining the runtime of the instance being passesd at runtime?When you cast an Object to a specific class or interface you are telling the compiler that the object is really of that class or interface. The only thing a cast does at run time is to verify that the actual object is of the specified class. Hence, for a cast to do any good, it must be present at compile time.
I don't know exactly what you are trying to do, but you might want to look at the visitor pattern.