Explain Structures with the help of an example.

Explain Structures with the help of an example.

A structure is a group of data of different data types. A structure must be defined before it is declared. A structure template is created during structure definition. Once the definition is given, structure may be declared. Memory is allotted to a structure only after declaration.

Syntax for structure definition :

struct structure_name

{

datatype member_1;

datatype member_2;

………

datatype member_n;

};

Example for structure definition:

Struct student

{

int roll_no;

int age;

char name[20];

};

Syntax for structure declaration:

struct <structure_name>    v1, v2, v3,…….., vn;

Example : 

struct student    s1, s2, s3;

To access the members of a structure .(dot) operator is used.

Example:

scanf(“%d%d%s”, &s1.roll_no, s1.age, s1.name);

scanf(“%d%d%s”, &s2.roll_no, s2.age, s2.name);

scanf(“%d%d%s”, &s3.roll_no, s3.age, s3.name);

Thanks

Mukesh Rajput