C++ Program that assigns data to members of a structure variable and displays the contents
include< iostream >
using namespace std;
struct Employee
{
char name[50];
int age;
float salary;
};
int main( )
{
Employee e1;
cout < < "Enter Full name:";
cin > > e1.name;
cout < < endl < < "Enter age:";
cin > >e1.age;
couts < < endl < < "Enter salary:";
cin-c-e1.salary; ,
cout < <"\nDisplaying Information." << endl;
cout< < "Name:" < < e1.name < < endl;
cout< < "Age:" < < e1.age < < endl:
cout < < "Salary:" < < e1.salary;
return 0;
}
Output:
Enter Full name:
Ezhil
Enter age:
27
Enter salary:
40000.00 .
Displaying Information.
Name: Ezhil
Age: 27
Salary: 40000.00

In row-major order, all the elements are stored row by row in continuous memory locations, that is, all the elements in first row, then in the second row and so on. The memory representation of row major order is as shown below:

The declaration of a 2-D array is data-type array_name [row-size][col-size];
In the above declaration, data-type refers to any valid C++ data-type, array_name refers to the name of the 2-D array, row-size refers to the number of rows and col-size refers to the number of columns in the 2-D array.
For example: intA[3][4];

A structure without a name/tag is called anonymous structure.
struct
{
long rollno;
int age;
float weight;
} student;
The student can be referred as reference name to the above structure and the elements can be accessed like student.rollno, student.age and student.weight .

struct structure_name {
type member_name1;
type mamber _name2;
} reference_name;
Example:
struct Student
{
long rollno;
int age;
float weight;
};