java - getClass().getName() 什么时候返回 void？

Question

Class.getName() 的 java 文档说:

Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this Class object, as a String.

什么时候返回 void？

Answer 1

它会给你void void 的类文字字符串输入:

Class<Void> clazz = void.class;
System.out.println(clazz.getName());

引用JLS § 15.8.2进一步阅读:

A class literal is an expression consisting of the name of a class, interface, array, or primitive type, or the pseudo-type void, followed by a '.' and the token class.
[...]
The type of void.class (§8.4.5) is Class<Void>.