What is the difference between class and structure?

structure member are public in default and class members are privare in default. 

1:By default,the members of structures are public while that for class is private

2: strutures doesn't provide something like data hiding which is provided by the classes

3: structures contains only data while class bind both data and member functions

Structure dosen't support the polymorphism, inheritance and initilization.



In a Structure all the data types are public but in class they are private.



In a Structure we can't initilse the value to the variable but in class variable we assign the values.



Structuer is a collection of the different data type.

There should be no confusions. The only difference between a structure and a class is that all members in a class are private by default whereas they are public in a structure.

Try inheritance, polymorphism, overloading, encapsulation, etc.
all these are possible.........

1. struct data is public by default.. but its private in a class
2. class is successor of struct in heirarchy..
3. struct is ovrloaded.. in C++ its not same with class..

Structure does support inheritance.

try out the following code.

#include

using namespace std;

struct Base
{
    int A;
};

struct Derived:public Base
{
    int B;
    void display();
};

void Derived::display()
{
    cout<<endl<<"A = "<<A<<endl;
}

int main()
{
    Derived D;
    D.A = 111;
    D.display();
    getchar();
    return 0;
}

Try out private and protected inheritance as well. It works. :)

Regards,
Sumit

  #include<iostream.h>
      #include<conio.h>
      #include<stdlib.h>
      struct a
      {
      protected:
      int x;
      public:
      a(int y)
      {
      x=y;
      }
      void showdata()
      {
      cout<<"x="<<x;
      }
      };
      void main()
      {
      a aa(2);
      aa.showdata();
      getch();
      }

structure support inheritance in cpp

Similar to difference in default access specifier, default inheritance too is different in Class Vs Structures.

A structure and a Class in C++ are same in every aspect expect in structure by default data members and member functions are public and private in case of class.

Structure is the ancestor of the class and the difference lies in the fact that all the members inside the class are taken as private by default but in structure all the members are made as public by default.

By default structure is private and class is public.

You cannot use inline functions in a structure

In case of class by default members and methods are in private section and In case of structure they are in public section.

Struct cannot be inherited.. thats the thing to be remembered.

Class stores both variables and methods.

Structure stores only members(variable) of different datatype.

By default the access specifiers of class are private but where as in structure it is public.

structure support multiple inheritence also try this code

Code
struct stud1
{
        int x;
        float y;
        stud1(int x,float y)
        {
                this->x = x;
                this->y = y;
        }
};
struct stud2:public stud1
{
        char c;
        stud2(int x,float y,char c):stud1(x,y)
        {
                this->c = c;
        }
};
struct stud3:public stud2
{
        char d;
        stud3(int x,float y,char c,char d):stud2(x,y,c)
        {
                this->d = d;
        }
};
int main()
{
        
        stud3 struTest(1,2.5,'y','x');
        cout<<struTest.x<<"
"<<struTest.y<<"
"<<struTest.c<<"
"<<struTest.d<<endl;
        getchar();
        return 0;
}
 

inline can be used in structures ...it is possible to work