Regarding the reflection, modification attribute, Why do we need to get the Field field first? [on hold]

正常来说，应该是下面这种，但是我个人感觉很别扭（Normally, it should be the following, but I personally feel awkward）
Class c = stu.getClass(); Field nameField = c.getField("name"); nameField.set(stu, "tom");

为啥不写成下面这种（why not design directly like this）：
Class c = stu.getClass(); c.set(stu,"name", "tom");