Data Structure Structure

by

Structure

A composite data type used to define a grouped list of variables, to be placed under one name in a block of memory is called structure. Thus, by using a single pointer to the structure, we can get access to different variables.

Syntax:

struct structure_name   
{  
   data_type member1;  
   data_type member2;  
    .  
    .  
    data_type member;  
};

Structure Advantages:

  • Variables of different data types can be held by a structure.
  • Objects containing different types of attributes can be created.
  • The data layout can be reused across programs.
  • Other data structures like linked lists, stacks, queues, trees, graphs, etc., can also be implemented by a structure.

Structure Advantages Example :

#include<stdio.h>  
#include<conio.h>
void main( )  
{  
struct employee  
{  
int id;  
float salary;  
int phone;  
} ;  
struct employee e1,e2,e3,e4,e5;  
printf ("\nEnter id, salary & phone no. of 5 employees\n");  
scanf ("%d %f %d", &e1.id, &e1.salary, &e1.phone);  
scanf ("%d %f %d", &e2.id, &e2.salary, &e2.phone);  
scanf ("%d %f %d", &e3.id, &e3.salary, &e3.phone); 
scanf ("%d %f %d", &e4.id, &e4.salary, &e4.phone);  
scanf ("%d %f %d", &e5.id, &e5.salary, &e5.phone);
printf ("\n Entered Data: ");  
printf ("\n%d %f %d", e1.id, e1.salary, e1.phone);  
printf ("\n%d %f %d", e2.id, e2.salary, e2.phone);  
printf ("\n%d %f %d", e3.id, e3.salary, e3.phone);
printf ("\n%d %f %d", e4.id, e4.salary, e4.phone);  
printf ("\n%d %f %d", e5.id, e5.salary, e5.phone); 
getch();  
}

Output: