Java reflection api

example.java

    public void getObject(Object obj) {
        try {
            for (Field field : obj.getClass().getDeclaredFields()) {
                //field.setAccessible(true); // if you want to modify private fields
                System.out.println(field.getName()
                        + " - " + field.getType()
                        + " - " + field.get(obj));
            }
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
    }