Sample

public class ClassDemo {

   public static void main(String[] args) {

     try {
        ClassDemo cls = new ClassDemo();
        Class c = cls.getClass();

        // class object associated with BaseClass
        Class bClass = BaseClass.class;

        // checks whether BaseClass is assignable from ClassDemo
        boolean retval = bClass.isAssignableFrom(c);
        System.out.println("Return Value = " + retval);

        // checks whether ClassDemo is assignable from BaseClass
        retval = c.isAssignableFrom(bClass);
        System.out.println("Return Value  = " + retval);
     }
   
     catch(Exception e) {
     System.out.println(e.toString());
     }
   }
}

// base class
class BaseClass extends ClassDemo {

    public BaseClass() {
       // no argument constructor
    }
}