Can a class be declared in another class?

A class can be declared within the scope of another class. Such a class is called a “nested class.” Nested classes are considered to be within the scope of the enclosing class and are available for use within that scope.

How do you declare a class from another class in C++?

Nested Classes in C++ A nested class is a class that is declared in another class. The nested class is also a member variable of the enclosing class and has the same access rights as the other members. However, the member functions of the enclosing class have no special access to the members of a nested class.

Can you define a class within a class C++?

Nested Classes in C++ A nested class is a class which is declared in another enclosing class. A nested class is a member and as such has the same access rights as any other member. The members of an enclosing class have no special access to members of a nested class; the usual access rules shall be obeyed.

Can a class contain another class in it yes or no?

Yes, in C++ you can, it is called a nested class. However, this class is more like an extension of it’s containing class, so don’t forget that the sub class can access it’s containing class members even if they are private.

How do you define a class in another 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.

Can I make class private?

A class is a user-defined (custom) datatype and you can’t declare a class in Java as private , but if you do not want to expose a particular user-defined data type (class) outside of another public class, then you can declare that as a nested/inner class (i.e., as a member of the public class).

Can we declare an object of another class as the data member?

As we know that a class contains data members and member function, and an object can also be a data member for another class.

Can a class be private in C++?

By default access to members of a C++ class is private. The private members are not accessible outside the class; they can be accessed only through methods of the class.

Can we create nested classes in C++ True False?

Explanation: The nested class can be declared with any specifier, unlike the outer classes which can only be declared public or package private. This is flexibility given for the nested class being a member of enclosing class.

Can a class contain another class in it Mcq?

9. What is the scope of a class nested inside another class? Explanation: It depends on the access specifier and the type of inheritance used with the class, because if the class is inherited then the nested class can be used by subclass too, provided it’s not of private type.

Can class be protected?

No, we cannot declare a top-level class as private or protected. It can be either public or default (no modifier).

Is it okay to declare classes inside other classes?

Yes you can declare classes privately inside other classes. Yes, you can use them as the type of an array provided the class itself is visible to you where you create the array. No, it’s completely fine.

Is it possible to create an object in the same class?

Is it not strange to create an object in the definition of the same class than in response the object create a new object then this new object create another and the infinite loop begins No, the main method only runs once when you run your program. It will not be executed again. So, the object will be created only once.

Why do we need to create inner classes?

You create an inner class because it is only ever used within the scope of class x and it logically fits in the factoring/architecture of class x. Class y might also be privy to implementation details of class x that are not meant to be known to the public. Share Improve this answer

Can there be an inner class without an outer class object?

In the case of normal or regular inner classes, without an outer class object existing, there cannot be an inner class object. i.e., an object of the inner class is always strongly associated with an outer class object.