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What is a string? Declare and initialize the strings in C language
An array of characters (or) collection of characters is called a string.
Declaration
Refer to the declaration given below −
char stringname [size];
For example - char a[50]; a string of length 50 characters.
Initialization
The initialization is as follows −
Using single character constant −
char string[20] = { ‘H’, ‘i’, ‘l’, ‘l’, ‘s’ ,‘\0’}
Using string constants −
char string[20] = "Hello":;
‘\0’ is called a null character. It marks the end of the string.
‘\0’ is automatically placed by the compiler, if a string is given as input. The user has to take care of placing ‘\0’ at the end if a single character is given.
Accessing − There is a control string "%s" used for accessing the string, till it encounters ‘\0’.
Example
Following is the C program for a string −
#include<stdio.h>
main ( ){
char a[10] = "Hello";
clrscr ( );
printf ( " given string is %s",a)
getch ( );
}Output
When the above program is executed, it produces the following result −
Given string is Hello
Updated on: 08-Mar-2021
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