The document discusses structures in C programming. Structures allow grouping of different data types under a single name. Structures are defined using the struct keyword followed by the structure name and fields. Fields can be of different data types like char, int, float. Structures can be declared, defined and used to store related data together. An example demonstrates defining a student structure with fields for name, address, age, GPA and using it to input student details and print them.

1. Structures
by
Najam Khattak
Structure 1

2. Structures
?
Structure 2

3. Structure
“A structure is a collection of
variables under a single name.
These variables can be of
different types, and each has a
name that is used to select it
from the structure”
Structure 3

4. Why we use
Structures
?
Structure 4

5. Structures are syntactically defined
with the word struct.
Syntax :
struct structure_name
{
Data of the structure
};
Structure 5

6. Declaration
struct student {
char name[60];
char address[100];
int MobileNo;
float GPA;
};
Structure
name
Data of the
structure
keyword
Structure 6

7. Definition
struct student {
char name[60];
char address[100];
int MobileNo;
float GPA;
} s1 , s2;
OR
Structure 7

8. struct student {
char name[60];
char address[100];
int MobileNo;
float GPA;
} ;
main()
{
student s1, s2;
}
Structure 8

9. Example
#include <iostream.h>
#include <conio.h>
struct student {
char name[50];
char address[100];
int age;
float GPA;
};
void main()
{
clrscr();
student s1;
cout<<"Please Enter the Student's Details as Askednn";
Structure 9

10. cout<<"nnName: ";
cin>>s1.name;
cout<<"nAddress: ";
cin>>s1.address;
cout<<"nAge: ";
cin>>s1.age;
cout<<"nGPA: ";
cin>>s1.GPA;
clrscr();
cout<<"nnt *** Printed data from the Struture *** ";
cout<<"nt **************************************";
cout<<"nntt**> Name: "<<s1.name<<endl;
cout<<"ntt**> Adress: "<<s1.address<<endl;
cout<<"ntt**> Age: "<<s1.age<<endl;
cout<<"ntt**> GPA; "<<s1.GPA<<endl;
getch();
}
Structure 10

11. Thanks
Structure 11