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 .
Read moreWhat are the differences between nested class and local class?
inner class: Can only exist withing the instance of its enclosing class. Has access to all members. local class: class declared in a block. It is like an inner class (has access to all members) but it also has access to local scope.
Read moreWhat are nested and inner classes?
A non-static nested class is a class within another class . It has access to members of the enclosing class (outer class). It is commonly known as inner class . Since the inner class exists within the outer class, you must instantiate the outer class first, in order to instantiate the inner class.
Read moreWhat is nested inner class in Java?
Java inner class or nested class is a class that is declared inside the class or interface . We use inner classes to logically group classes and interfaces in one place to be more readable and maintainable. Additionally, it can access all the members of the outer class, including private data members and methods.
Read more