Loading classes that extend another class from jars in directory

Question

What I want to do is , let's say I have a folder , and that is a directory, and let's say I created a JAR that has a class in there that is extending "Apple". How would I check ALL JARS in that folder and check that they have class extending Apple, THEN add each and every one of those classes extending apple to my List?

Answer 1

You have to use reflection API for this. First, get list of all classes loaded by class loader and then with the help of reflection API, you can check if a class extends Apple or not. Hope this helps