C Strings Basics

Introduction to Character Array :

In C Programming we don’t have Sting data type. In C we have to use different approach to store the string. We are creating array of character to creating string. Suppose we have to accept the name of the person then n characters are collected together and string or character array is created.

Some Points Regarding Character Array | String in C Programming :

String in C is also called as Character Array

'C','4','L','E','A','R','N'

String is enclosed within Double quotes

"Pritesh" is a example of String

Each Character Occupy 1 byte of Memory

Size of "Pritesh" = Size of 'P' +
                  = Size of 'R' +
                  = Size of 'I' +
                  = Size of 'T' +
                  = Size of 'E' +
                  = Size of 'S' +
                  = Size of 'H';
Size of "Pritesh" = 7 BYTES

Each Character is stored in consecutive memory location

Address of 'P' = 2000
Address of 'R' = 2001
Address of 'I' = 2002
Address of 'T' = 2003
Address of 'E' = 2004
Address of 'S' = 2005
Address of 'H' = 2006

String always Terminated with NULL Character (‘/0′)

char name[10] = {'P','R','I','T','E','S','H','\0'}

NULL Character is having ASCII value 0

ASCII Value of '\0' = 0

As String is nothing but an array , so it is Possible to Access Individual Character

name[10] = "Pritesh";

It is possible to access individual character -

name[0] = 'P';
name[1] = 'r';
name[2] = 'i';
name[3] = 't';
name[4] = 'e';
name[5] = 's';
name[6] = 'h';
name[7] = '\0';