type casting to a class 1

[lovekang]

Class c = Class.forName("javax.crypto.Cipher");
I want to cass my_object to the same type of c.
Is it possible?
if so how?

 

[sedj]

Not sure what you want to do, but if you want to create an object on the fly (ie at runtime), you would do :

Object o = Class.forName("com.acme.MyClass").newInstance();

This relys on the fact that your class has a default constructor.

If it does not have a default contstrucor, you need to use reflection to pass the desired parameters. Eg, to list all the Constructors :

Class c = Class.forName("com.acme.MyClass");
Constructor[] ctors = c.getConstructors();
for (int i = 0l i < ctors.length; i++) {
  // look for you desired constuctor 
  // and then call the relevant newInstance() method on the 
  // ctor object
}

--------------------------------------------------
Free Java/J2EE Database Connection Pooling Software

http://www.primrose.org.uk