public static <T> void afficher(T obj) {
		for (Method m : obj.getClass().getDeclaredMethods()) {
			if (m.getName().startsWith("get")) {
				try {
					System.out.println(m.getName().replace("get", "") + " : \t"
							+ m.invoke(obj, null));
				} catch (IllegalAccessException | IllegalArgumentException
						| InvocationTargetException e) {
					e.printStackTrace();
				}
			}
		}
		System.out.println();
	}