How to determine if a class is a subclass of other class ?

Question

I'd like to check if a Class object represents a subclass of other class for example

Class class1 = Class.forName("Class1");
Class class2 = Class.forName("Class2");

 if(class1.isSubClassOf(class2)) // fake methos isSubClassOf
{
  // do sth
}

How can I implement this isSubClassOf method ?

Answer 1

Class.isAssignableFrom() provides more-or-less what you're after, although it handle interfaces also, so may need to do a bit more extra work to be sure that it's a subclass, direct or otherwise.

Answer 2

instanceof operator, IIRC.

However, you should never ever do this. Add a method to the applicable class and be done with it.