Structures in C++ :

Introduction to Structures in C++ language :

C language Structure (.) Operator or sizeof() - Structures are one of the two important building blocks in the understanding of classes and objects. A structure is a collection of data while a class is a collection of data and functions. In other words, we can say, a structure plus related functions make a class. Technically, there is no difference between a structure and a class. The keyword struct tells the compiler that a structure is begin defined.

Example :

  1. /* Description: store students name in C++ language */
  3. #include<iostream>
  4. using namespace std;
  6. struct data{
  7. char name[20];
  8. }info[21];
  10. int main()
  11. {
  12. int i,j;
  14. cout<<" Enter how many student data you want to load ( MAX 20 ): ";
  15. cin>>i;
  17. for(j=1;j<=i;j++)
  18. {
  19. cout<<"\n No. "<&l<j <<" Student name : ";
  20. cin>>info[j].name;
  21. }
  23. cout<< "\n ------ DATA STOR COMPLETED ------- \n\n";
  25. for(j=1;j<=i;j++)
  26. {
  27. cout<<"\n No. "<&l<j <<" Name: " <<info[j].name;
  28. }
  29. }

Output :

C++ language store students name

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