如何找到未命名的JSON对象的值？(org.json) (java)

String jsonString = "{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}";
JSONObject jsonObject = new JSONObject(jsonString);

Iterator<String> keys = jsonObject.keys();
while (keys.hasNext()) {
    String key = keys.next();
    Object value = jsonObject.get(key);
    // 在这里可以对值进行进一步处理或使用
    System.out.println("Key: " + key + ", Value: " + value);
}

Iterator<String> keys = jsonObject.keys();
while (keys.hasNext()) {
    String key = keys.next();
    Object value = jsonObject.get(key);
    if (JSONObject.NULL.equals(value)) {
        // 值为null的处理逻辑
        System.out.println("Key: " + key + ", Value is null");
    } else {
        // 值不为null的处理逻辑
        System.out.println("Key: " + key + ", Value: " + value);
    }
}