Issue understanding static nested classes [duplicate]

Question

Referencing the following example:

class Plane { ... static class Gearbox { ... } }

The following is possible:

Plane.Gearbox gearbox = new Plane.Gearbox();

I was wondering if someone could explain what effect the 'static' keyword has in this situation. Coming from C#, this is very strange to me as static classes cannot be instantiated.

I am well aware that there are other questions referring to the same topic, or information online, however I still don't fully understand the use of the 'static' keyword in this situation. Therefore I would greatly appreciate someones help to understand this concept in Java.

Java static nested classes have absolutely nothing to do with how static class works in C#. See this official tutorial for an explanation of how they work in Java: docs.oracle.com/javase/tutorial/java/javaOO/nested.html — UnholySheep
– UnholySheep, Commented Dec 27, 2019 at 15:25
docs.oracle.com/javase/tutorial/java/javaOO/nested.html: Note: A static nested class interacts with the instance members of its outer class (and other classes) just like any other top-level class. In effect, a static nested class is behaviorally a top-level class that has been nested in another top-level class for packaging convenience. - A static nested class is just like a typical top level class. — user6073886
– user6073886, Commented Dec 27, 2019 at 15:27

Code-Apprentice · Accepted Answer · 2019-12-27 15:25:50Z

-1

In Java, static means that an item is associated with the class itself and not with a specific instance of the class.

answered Dec 27, 2019 at 15:25

Code-Apprentice

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