String

String : String is a collection of characters.

Example 1 :

#include <stdio.h>

int main()
{
    char arr[10];

    printf("Enter name: ");
    scanf("%s",arr);

    printf("Hello %s",arr);

    return 0;
}

Output :

Enter name: Surbhi
Hello Surbhi

Assignment operator ( = ) : Assignment operators are used to assigning value to a variable.

Without mentioning size

Example 2 :

#include <stdio.h>

int main() {
    char arr[] = {'R', 'T', 'C', '\0'};

    printf("Hello %s", arr);

    return 0;
}

Output :

Hello RTC

Example 3 :

#include <stdio.h>

int main() {

    char str[100];
    printf("Enter Name: ");
    scanf("%s", str);

    printf("Hello %s", str);

    return 0;
}

Output :

Enter Name: Vaishnavi
Hello Vaishnavi

Example 4 : WAP to find length of a string.

#include <stdio.h>

int main() {

    char str[100];
    printf("Enter Name: ");
    scanf("%s", str);

    for(int i=0; i<100; i++)
    {
        if(str[i]=='\0')
        {
            printf("%d", i);
            break;
        }
    }

    return 0;
}

Output :

Enter Name: Suraj
5

Example 5 :

#include <stdio.h>

int main() {

    char str[100];
    printf("Enter Name: ");
    scanf("%s", str);

    int count = 0;

    for(int i=0; i<100; i++)
    {
        if(str[i]=='\0')
        {
            break;
        }
        else
        {
            count++;
        }
    }
    printf("Length of string is: %d", count);

    return 0;
}

Output :

Enter Name: Vaishnavi
Length of string is: 8

Using while loop

Example 6 :

#include <stdio.h>

int main() {

    char str[100];
    printf("Enter Name: ");
    scanf("%s", str);

    int count = 0;

    while(str[count]!='\0')
    {
        count++;
    }
    printf("Length of string is: %d", count);

    return 0;
}

Output :

Enter Name: Rutuja
Length of string is: 6