Casting Issue

[jsulman]

Is there any way to cast an object based on a variable and not the actual object type?
For example I know I can do this:

public class testCast(Texas tx){ // Texas extends State
State state = null;
State = (Texas)tx;
}

What if I had an object of Texas but did not know the name of the class but had it in a variable instead?

public class testCast2(Texas tx){
State state = null;
stateName = tx.getClass().getName();
State = (stateName)tx
}

How would I do the equivalent of State = (stateName)tx where stateName is a String containing the name of the class.

 

[sedj]

I think you've got it all a bit muddled up.
Assuming that "State" is an interface, an abstract class, or that "Texas" extends "State", you would do :

public void test(State state) {
  if (state instanceof Texas) {
     Texas tx = (Texas)state;
  }
}

or, as maybe you are getting at :

public void test(Texas tx) {
  // no need to cast, because Texas implements/extends State
  State state = tx;
}

--------------------------------------------------
Free Database Connection Pooling Software

http://www.primrose.org.uk