How to find the Class with Reflection API

I am trying to find the type (Interface or class) of the "Class" instance. I can find isInterface() or isEnum(). But I want to check whether this is a class or not. WHY there is no method like "isClass()"? any help??

I have this code:

interface A {

}

class B {

}

public class ReflectionDemo {

    public static void main(String[] argv) throws Exception {

        Class a = A.class;
        System.out.println(a.getCanonicalName());
        System.out.println(a.getSimpleName());
        System.out.println(a.isInterface());
        System.out.println(a.isEnum());

        Class b = B.class;

        System.out.println(b.getCanonicalName());
        System.out.println(b.getSimpleName());
        System.out.println(b.isInterface());
        System.out.println(b.isEnum());

    }

}