Javaのinstanceof判定

[Test Code]

		class a {
			a() {
			}
			String getname() {
				return "this is a.";
			}
		}
		class b extends a {
			b() {
				super();
			}
			String getname() {
				return super.getname()+"but this is also b";
			}
		}
		Class bclazz = b.class;
		a bx = new a();
		try {
			bx = bclazz.newInstance();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InstantiationException e) {
			e.printStackTrace();
		}
		if(bx instanceof b)
			Log.w("Test", "this is instanceof b");
		if(bx instanceof a)
			Log.w("Test", "this is instanceof a");
		Log.w("Test", bx.getname());

[Result]


08-29 09:41:31.314: WARN/Test(14370): this is instanceof b
08-29 09:41:31.314: WARN/Test(14370): this is instanceof a
08-29 09:41:31.314: WARN/Test(14370): this is a.but this is also b