https://dev.java/learn/classes-objects/nested-classes/
Nested Classes - Dev.java
Defining a class within another class.
nested classesdevjava
https://www.codecademy.com/learn/learn-intermediate-java-nested-classes
Learn Intermediate Java: Nested Classes | Codecademy
Learn about nested classes, encapsulation, and shadowing in Java.
intermediate javanested classeslearncodecademy
https://docs.godotengine.org/en/stable/tutorials/scripting/c_sharp/diagnostics/GD0002.html
GD0002: Missing partial modifier on declaration of type which contains nested classes that derive...
,,,,,, Rule ID, GD0002,, Category, Usage,, Fix is breaking or non-breaking, Non-breaking,, Enabled by default, Yes,,,, Cause: A type that derives from...