coderz.py

Array of Structure:

In C, an array of structures is a collection of many structure variables, each of which has information on a different entity. An array of structures is used in C to store information about several entities of various data types. The collection of structures is another name for the array of structures.

Example:

#include<stdio.h>  
#include <string.h>    
struct student{    
int rollno;    
char name[10];    
};    
int main(){    
int i;    
struct student st[5];    
printf("Enter Records of 5 students");    
for(i=0;i<5;i++){    
printf("\nEnter Rollno:");    
scanf("%d",&st[i].rollno);    
printf("\nEnter Name:");    
scanf("%s",&st[i].name);    
}    
printf("\nStudent Information List:");    
for(i=0;i<5;i++){    
printf("\nRollno:%d, Name:%s",st[i].rollno,st[i].name);    
}    
   return 0;    
}    

Output:

Enter Records of 5 students
Enter Rollno:1
Enter Name:Coderzpy
Enter Rollno:2
Enter Name:Rabecca
Enter Rollno:3
Enter Name:Vimal
Enter Rollno:4
Enter Name:James
Enter Rollno:5
Enter Name:Sarfraz

Student Information List:
Rollno:1, Name:Coderzpy
Rollno:2, Name:Rabecca
Rollno:3, Name:Vimal
Rollno:4, Name:James
Rollno:5, Name:Sarfraz

Let us now explore the intricacies of structures with a view of programming convenience.

Additional features of Structures:

• Using the assignment operator, the values of a structure can be assigned to another structure variable of the same type.
• One structure can be nested inside another. Complex data types can be generated using this feature.
• A structural variable can be provided into a function as well. We have the option of passing particular structure elements or the entire structure variable at once.
• In the same way that we may have a pointer pointing to an int or a pointer referring to a char, we can also have a pointer pointing to a struct. These are referred to as ‘structure pointers’.
• It should be noted that structure elements are stored in adjacent memory locations.

Uses of Structures:

Structures can be used for a variety of purposes:

• Changing the size of the cursor.
• Clearing the contents of the screen.
• Placing the cursor at an appropriate place on the screen.
• Drawing any shape on the screen.
• Obtaining a key from the keyboard.
• Checking the memory size of the computer.
• etc.

Note: also read about arrays in C & Structure in C

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