C program to find the length of a string; Through this tutorial, we will learn how to write a program to find a length of a string using for loop, function, recursion, and built-in method in c.
Programs To Find Length Of A String in C
- C Program To Find Length Of A String using For Loop
- C Program To Find Length Of A String using Function
- C Program To Find Length Of A String using Recursion
- C Program To Find Length Of A String using strlen() function
C Program To Find Length Of A String using For Loop
#include <stdio.h>
int main()
{
char s[1000];
int i;
printf("Enter any string: ");
gets(s);
for(i=0; s[i]!='\0'; i++);
printf("Length of '%s' = %d",s,i);
return 0;
}
The output of the above c program; as follows:
Enter any string: programming Length of 'programming'= 11
C Program To Find Length Of A String using Function
int stringlength(char *s)
{
int i;
for(i=0; s[i]!='\0'; i++);
return i;
}
int main()
{
char s[1000];
int length;
printf("Enter any string: ");
gets(s);
length=stringlength(s);
printf("Length of '%s' = %d",s,length);
return 0;
}
The output of the above c program; as follows:
Enter any string: hello Length of 'hello' = 5
C Program To Find Length Of A String using Recursion
int stringlength(char *s,int i)
{
if(s[i]=='\0')
return i;
stringlength(s,++i);
}
int main()
{
char s[1000];
int length;
printf("Enter any string: ");
gets(s);
length=stringlength(s,0);
printf("Length of '%s'= %d",s,length);
return 0;
}
The output of the above c program; as follows:
Enter any string: using recursion Length of 'using recursion'= 15
C Program To Find Length Of A String using strlen() function
#include <string.h>
int main()
{
char s[1000];
int length;
printf("Enter any string: ");
gets(s);
length=strlen(s);
printf("Length of '%s'= %d",s,length);
return 0;
}
The output of the above c program; as follows:
Enter any string: hello Length of 'hello' = 5
