In Java, just like methods, variables of a class too can have another class as its member. Writing a class within another is allowed in Java . The class written within is called the nested class, and the class that holds the inner class is called the outer class. Following is the syntax to write a nested class.
Read moreWhat are the different types of nested classes in Java?
There are basically four types of inner classes in java.
Read moreCan inner classes access outer class members?
Inner classes have special relationship with outer class instances. This relationship allows them to have access to outer class members including private members too .
Read moreCan inner classes access private members?
Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private . Static nested classes do not have access to other members of the enclosing class.
Read moreCan inner class access outer class private variable?
Inner class is regarded as an attribute of the Outer class. Therefore, no matter the Inner class instance variable is private or not, Outer class can access without any problem just like accessing its other private attributes(variables) .
Read moreWhat is a nested class in Java?
A nested class is a member of its enclosing class . Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class.
Read moreCan inner class access outer class variables C++?
An inner class is a friend of the class it is defined within. So, yes; an object of type Outer::Inner can access the member variable var of an object of type Outer .
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