什么是真正的在Java中Boolean.TRUE和区别？ [英] What is the difference between Boolean.TRUE and true in Java?

问题描述

PS：我明白之间​​的差别真实，真实

PS: I understand the difference between "true" and true.

编辑：
我也明白，Boolean.TRUE是一个包装的原始真实的，我的问题则 - 为什么原始布尔接受Boolean.TRUE作为一种价值？
例如，

I also understand that Boolean.TRUE is a wrapper for the primitive true, my question then is - why does the primitive boolean accept Boolean.TRUE as a value? For instance,

boolean boolVar = Boolean.TRUE;

似乎是一个有效的语句。

seems to be a valid statement.

推荐答案

究其原因

boolean boolVar = Boolean.TRUE;

作品是因为的 autounboxing 的，一个Java 5的功能，可以让一个包装对象将在需要时自动转换成其基本等价的。与此相反，的自动装箱的，也是可能的：

works is because of autounboxing, a Java 5 feature that allows a wrapper object to be converted to its primitive equivalent automatically when needed. The opposite, autoboxing, is also possible:

Boolean boolVar = true;

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