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

#include< iostream >
using namespace std;
int main ( )
{
int data [5];
cout< < "Enter elements:";
for(int i = 0; i < 5; ++i)
cin > > data [i]; .
cout < < "You entered:";
for (int i = 0; i < 5; ++i)
cout < < endl < < *(data +i);
}
return 0;
Output:
Enter elements:
1
2
3
5
4
You entered:
1
2
3
5
4

The array can be initialized in more than one way at the time of 2-D array declaration.
For example
int matriX[4][3]={
{10,20,30},// Initializes row 0
{40,50,60},// Initializes row 1
{70,80,90},// Initializes row 2
{100,110,120}// Initializes row 3
};
int matrix [4][3]= {10,20,30,40,50,60,70,80,90,100,110,120};
Array's row size is optional but column size is compulsory.

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];

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

A structure can be passed to a function through its object. Therefore, passing a structure to a function or passing a structure object to a function is the same because structure object represents the structure. Like a normal variable, structure variable(structure object) can be passed by value or by references / addresses. Similar to built-in data types, struc.tures also can be returned from a function.

#include< iostream >
using namespace std;
int main( )
{
int i, j, len, flag =1;
char a [20];
cout < < "Enter a string:";
cin > > a;
for(len=0;a[len]!= '\0';++len)
for(!=0,j=len-1;i<len/2;++i,--j)
{
if(a[j]!=1[i])
flag=0;
}
if(flag==1)
cout< < "\n The String is palindrome";
else
cout< < "\n The String is not palindrome";
return 0;
}
Output:
Enter a string: madam
The String is palindrome

The nested structures act as members of another structure and the members' of the child structure can be accesed as parent structure name. Child structure name. Member name.

Syntax Array declaration is:
char array _name[ size];

To create any kind of array, the size (length) of the array must be known in advance, so that the memory location can be allocated according to the size of the array. Once an array is created, its length is fixed and cannot be changed during run time.

Output:
Enter the age:
18
Enter the height:
160.5
Enter the weight:
46.5
The Date of birth
Enter the day:
25
Enter the month:
NOV
Enter the year:
2017
The values entered for Age, height and weight are
18     160.5             46.5
His date of Birth is:
25-NOV-2017

Normally, the two-dimensional array can be viewed as a matrix. The conceptual view of a 2-D array is shown below:
int A[4][3];

In the above example, the 2-D array name A has 4 rows and 3 columns.
Like one-dimensional, the 2-D array elements are stored in continuous memory.
There are two types of 2-D array memory representations. They are:
1. Row-Major order
2. Column-Major order
For example
int A[4)[3]={
{ 8,6,5},
{ 2,1,9},
{3,6,4},
{4,3,2},

#include < iostream.h
using namespace std;
struct Employee
{
int Id;
char Name[25];
int Age;
long Salary;
};
Employee Inpt();
void main()
{
Employee e;
Emp = Input();
cout <<  "The values Entered are' << end1:
cout <<  n\n\nEmployee Idr' << e.Id;
cout << "\nEmployee Name:"<<  e.Name;
cout <<  "\nEmployee Age.<< e.Age;
cout <<  n\nEmployee Salary:" << e.Salary;
}
Employee Input()
}
Employee e;
cout << n\nEnter Employee Id:";
cint  >> e.Id;
cout <<  "\nEnter Employee Name:";
cin >> e.Name;
cout << "\nEnter Employee Age:";
circ >> e.Age;
cout << n\nEnter Employee Salary:";
cin >> e.Salary;
return;
}

Struct Employee { char name[50]; int age; float salary};
#include < iostream >
using namespace std;
struct Employee
{
char name[50];
int age;
float salary;
};
int maim)
{
Employee e1;
cout' << "Enter Full name: ";
cin >> e1.name;
cout << ccend1 << x'Bnter age: ";
cin >> e1.age;
cout << ccend1' << "Enter salary: ";
cin >> e1.salary;
cout <<  "\nDisplaying Information." .
<< end1;
,cout << "Name: n << e1.name << end1;
cout << "Age: " << e1.age << end1:
cout <<  "Salary: " << e1.salary;
return 0;
}
Output:
Enter Full name: Ezhil
Enter age: 27
Enter salary: 40000.00
Displaying Iriformation.
Name: Ezhil
Age: 27
Salary: 40000.00