@Override
	@Deprecated
	public JSONObject put(String key, Object value) throws JSONException {
		return set(key, value);
	}
@Test
	public void floatTest() {
		final Map<String, Object> map = new HashMap<>();
		map.put("c", 2.0F);

		final String s = JSONUtil.toJsonStr(map);
		assertEquals("{\"c\":2}", s);
	}