The difference between structures and classes in c++

Structures and classes are composite data types in C, but there are the following key differences: default access permissions (structures are public, classes are private), default constructors (classes have them, structures do not), member functions ( Classes have it, structures don’t), inheritance (classes support it, structures don’t), polymorphism (classes have it, structures don’t).

The difference between structures and classes in C

In C, both structures and classes are used to organize data Composite data type with methods. However, there are some key differences between them:

1. Default access: Members of a structure have public access by default, while members of a class have private access by default.

2. Default constructor:

The structure does not have a default constructor, but the class does.

3. Member functions:

Structures cannot contain member functions, but classes can.

4. Inheritance:

Structures cannot be inherited, but classes can.

5. Polymorphism:

Structures do not support polymorphism, but classes do.

Detailed explanation:

Default access permissions:

All members of the structure can be accessed from anywhere, while private members of the class Can only be accessed from within the class.

Default Constructor:

A structure does not have a default constructor, which means that a constructor must be explicitly defined to create an instance of the structure. Classes have a default constructor which initializes all members to default values.

Member functions:

Structures cannot contain member functions because they do not have member function pointers. Classes can contain member functions that allow operations on data.

Inheritance:

Structures cannot be inherited because they do not have virtual function tables. Classes can be inherited, allowing the creation of new classes with different behaviors.

Polymorphism:

Structures do not support polymorphism, which means that methods of derived classes cannot be called through base class pointers. Classes support polymorphism, allowing methods of derived classes to be called using base class pointers.

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