An instance variable reserves memory for the data your class needs . Let’s assume you want to add a place for a string or int variable. You can use an instance variable to reserve that memory for the lifetime of the object. Each object will receive unique memory for its variables.
Read moreWhat is class in C with example?
It is a user-defined data type, which holds its own data members and member functions, which can be accessed and used by creating an instance of that class . A C++ class is like a blueprint for an object. For Example: Consider the Class of Cars.
Read moreCan you have a class within a class in C++?
A nested class is declared within the scope of another class . The name of a nested class is local to its enclosing class.
Read moreCan you have a class in a class?
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.
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