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C programs QnA

Q. If sum of two integer is 14 and if one of them is 8 then find other integer. Ans: Well, this is very simple. Simply, one integer is 8 and sum of two integers is 14. So, we need to subtract the number 8 from their sum of 14 to get the second number. So, the second number is: 14 - 8 = 6 C-Program of this task Code---> #include<stdio.h> int main () { int num1 = 8 , num2 , sum = 14 ; num2 = sum - num1 ; printf ( "The second number is: %d" , num2 ); return 0 ; }
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Length of a String NOT using strlen() in C-Language



In this C program we will find the "Length" of a string. The String will be given by the User.

Learn about different string functions and their use: Different String Functions

input:

The String.

output:

The Length of the String will be printed on the screen.

CODE---->


#include<stdio.h>
#include<string.h>
int main()
{
 int n=0,len=0;
 char arr[100];
 printf("Please, Enter the String : ");
 gets(arr);
 while(arr[n]!='\0')
 {
  len++;
  n++;
 }
 printf("\nThe length of the string is : %d",n);
 return 0;
}

Download the C-Program file of this Program.

Don't just read, run on your pc !!!


RESULT :


Please, Enter a string : Hello World

String Length is : 11
--------------------------------
Process exited after 11.28 seconds with return value 0
Press any key to continue . . .


Images for better understanding :


Using Function :

#include<stdio.h>
#include<string.h>
int STRLEN(char *str)
{
 int len=0;
 while(*str='\0')
 {
  len++;
  str++;
 }
 return len;
}
int main()
{
 int n;
 char arr[100];
 printf("Please, Enter the String : ");
 gets(arr);
 n=STRLEN(arr);
 printf("\nThe length of the string is : %d",n);
 return 0;
}

Download the C-Program file of this Program.

Don't just read, run on your pc !!!


RESULT :


Please, Enter a string : Hello World

String Length is : 11
--------------------------------
Process exited after 9.568 seconds with return value 0
Press any key to continue . . .


Images for better understanding :

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