Integer.class和Integer.TYPE之间的区别 [英] Difference between Integer.class and Integer.TYPE

问题描述

这两者有什么区别？原始类型不能有类，可以 - 它是原始的。没有对象可以上课。

What is the difference between these two? A primitive type cannot have "Class", can it - it is primitive. There are no objects to have a class.

这两者有何区别？

推荐答案

我不是肯定你的意思，但是 - Class 对象是一个类型的运行时代表。也就是说，有一个 int.class 这样的东西与 Integer.class 不同，即使 int 不是一个类。它有点复杂，但有必要使反射工作甚至在采用原始参数或返回原始值的方法上，或者区分接受 Integer 的方法与接受 int 。

I'm not positive what you mean, but -- A Class object is a runtime representative of a type. That said, there is such a thing as int.class that is distinct from Integer.class, even though int is not a class. It's kind of complicated, but it's necessary to make reflection work even on methods that take primitive arguments or return primitive values, or to distinguish a method that accepts an Integer from a method that accepts an int.

Integer.TYPE ，I相信，相当于 int.class 。

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