Count Length of String..

Count Length of String

Count Length of String is nothing but just count number of character in the given String. For Example: String="India" in this string have 5 characters also this is the size of string.

Count length of String without using any library function.

/**************************************************
              Count length of String
***************************************************/
#include< stdio.h>
#include< conio.h>

 void main()
  {
   int i,count=0;
   char ch[20];
   clrscr();
   printf("Enter Any String: ");
   gets(ch);
   for(i=0;ch[i]!='\0';i++)
   {
   count++;
   }
   printf("Length of String: %d",count);
   getch();
  }

Output

Enter any String: hitesh
Length of String: 6

Explanation of Code

Here gets() is a predefined function in "conio.h" header file, It recevie a set of character or String from keyboard.

for(i=0;ch[i]!='\0';i++)
   {
   count++;
   }

Here we check the condition ch[i]!='\0' its means loop perform until string is not null, when string is null loop will be terminate.

Count length of String Using Library Function

/**************************************************
             Count length of String
***************************************************/

#include< stdio.h>
#include< string.h> 
 int main()
  {
   char str[20];
   int length;
   printf("Enter any string: ");
   gets(str);
   length = strlen(str);
   printf("Length of string: %d",length);
   return 0;
}

Output

Enter any String: Kumar
Length of String: 5

Explanation of Code:

• Here gets() is a predefined function in "conio.h" header file, It recevie a set of character or String from keyboard.
• strlen() is a predefined function in "conio.h" header file which return length of any string.

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