1.9 KiB
1.9 KiB
title |
---|
Structures |
Structures in C
What are Structures?
- A structure is a user-defined type in C. It is based on the idea that certain times, programmer wants to manage not just primitive data-types but also programmer-defined data-types.
- Structure, as the name suggests, consists of various primitive data-types, like character, integers, floating point variables, arrays, etc.
- Structure can also contain various other user-defined data types. You would learn about nested-structures next.
- Structures form the basis of object-oriented-programming as the concept of class originates from structures.
struct keyword
struct
keyword can help us in defining a user-defined data type.
struct StudentRecord
{
char Name[20];
int Class;
char Address[30];
char Phone[10];
};
- We can also define a structure using typedef which makes initializing a structure later in our program easier.
typedef struct StudentRecord
{
char Name[20];
int Class;
char Address[30];
char Phone[10];
}Record;
In main()
, the user-defined data-type StudentRecord is defined as:
int main(void)
{
struct StudentRecord student1;
}
And using typedef, the user-defined data-type looks like:
int main(void)
{
Record student1;
}
To access the data stored in student1, we use dot( . ) operator to access the contents of the structure type variable.
int main(void)
{
struct StudentRecord student1;
student1.Class = 10;
printf("Enter Name of Student\n");
scanf("%s",&student1.Name);
printf("Enter Address of Student\n");
scanf("%s",&student1.Address);
printf("Enter Phone Number of Student\n");
scanf("%s",&student1.Phone);
// Printing the Data
printf("Name: %s \n, Class: %d \n, Address: %s \n, Phone: %s \n",student1.Name, student1.Class, student1.Address, student1.Phone);
}
More Information
https://www.tutorialspoint.com/cprogramming/c_structures.htm