public class Main {
	class A { };
	class B extends A { };
	class C extends B { };
	
	private void run() {
		B b = new C();
		
		System.out.println(b instanceof A);
		System.out.println(A.class.isAssignableFrom(b.getClass()));
		System.out.println(B.class.isAssignableFrom(b.getClass()));
		System.out.println(C.class.isAssignableFrom(b.getClass()));
	}

	public static void main(String[] args) {
		new Main().run();
	}

}