java - Why can't a static nested class access "this" pointer of outer class? -

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enter image description here

the thing bothers me second point.

i thought might have fact "this" pointer isn't static , inner class can't access it. i'm not sure if that's right explanation though.

this raised question me "where "this" pointer defined?"

the difference between static nested class , 1 isn't static precisely instance of non-static inner class associated specific instance of enclosing class, while static inner class isn't. there is no a.this instance of static inner class associated with.


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