Java nested classes best practices

Static Nested Class : can’t access enclosing class instance and invoke methods on it, so should be used when the nested class doesn’t require access to an instance of the enclosing class . A common use of static nested class is to implement a components of the outer object .

In Java, it is possible to define a class within another class, such classes are known as nested classes. They enable you to logically group classes that are only used in one place, thus this increases the use of encapsulation, and creates more readable and maintainable code .21 Oca 2022

Simply put, Java allows us to define classes inside other classes. Nested classes enable us to logically group classes that are only used in one place, write more readable and maintainable code and increase encapsulation .3 May 2020

Nested classes are just like regular classes, but: they have additional access restriction (as all definitions inside a class definition do), they don’t pollute the given namespace, e.g. global namespace .