Which of the following access specifiers is used in a class definition by default?Select one:ProtectedPublicPrivateFriend

Final Answer

The default access specifier used in a class definition is Private.

Explanation

In C++, when you define a class, if you do not specify an access modifier, the members of the class are automatically treated as private. This means that they cannot be accessed directly from outside the class. Here’s a brief explanation of each option:

1. Protected: Members declared as protected can be accessed in the class itself and by derived classes, but not from outside the class.

2. Public: Members declared as public can be accessed from anywhere where the object is visible.

3. Private: Members defined as private are accessible only within the same class or by friends of that class and cannot be accessed directly from outside.

4. Friend: This is not an access specifier but rather a keyword that allows another class or function to access private and protected members of the class in which it is declared.

In summary, if no access specifier is declared in a class, the members are private by default.