静态类可以包含实例初始化块吗？

Question

While reading Java I came across one question:

Can a static class contains instance initialization block ?

Answer 1

Static (or nested) classes can have both instance and static initialization blocks.

Consider a nested class as

a top-level class that has been nested in another top-level class for packaging convenience.
^{_{The Java Tutorials > Nested Classes}}

On the other hand, inner classes can't have a static initialization block. No static content is allowed within them.