Checking if a Class object is a subtype of another Class object in Java?

Question

Let's say I have two Class objects. Is there a way to check whether one class is a subtype of the other?

 public class Class1 { ... }

 public class Class2 extends Class1 { ... }

 public class Main {
   Class<?> clazz1 = Class1.class;
   Class<?> clazz2 = Class2.class;

   // If clazz2 is a subtype of clazz1, do something.
 }

Are you looking for: stackoverflow.com/questions/3504870/… — JRaymond
– JRaymond, Commented Apr 27, 2012 at 5:12

Travis Webb · Accepted Answer · 2012-04-27 05:17:44Z

11

if (clazz1.isAssignableFrom(clazz2)) {
    // do stuff
}

This checks if clazz1 is the same, or a superclass of clazz2.

edited Apr 27, 2012 at 5:17

answered Apr 27, 2012 at 5:12

Travis Webb

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Nishant · Accepted Answer · 2012-04-27 05:28:23Z

2

You can check like this:

if(Class1.class.isAssignableFrom(Class2.class)){

}

answered Apr 27, 2012 at 5:28

Nishant

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