Password for Validation of User name

C Program to Input Password for Validation of User name

#include

#include

 void main()

{

   char password[25], ch;

   int i;

   clrscr();

   puts("Enter password : ");

    while (1)

    {

      if (i < 0)

     {

         i = 0;

      }

      ch = getch();

      if (ch == 13)

         break;

      if (ch == 8)

       {

         putch('b');

         putch(NULL);

         putch('b');

         i--;

         continue;

      }

      password[i++] = ch;

      ch = '*';

      putch(ch);

   }

    password[i] = '\0';

   printf("\nPassword Entered : %s", password);

   getch();

}

Output

Enter password : ******

Password Entered : rakesh

C Program to Count number of digits in number without using mod operator

#include

#include

int main() {

   int num, digits;

   char ch[10];

   printf("\nEnter the Number : ");

   scanf("%d", &num);

   sprintf(ch, "%d", num);

   digits = strlen(ch);

   printf("\nNumber of Digits : %d", digits);

   return(0);

}

Output

Enter the Number : 1234

Number of Digits : 4

C Program to Write inline assembly language code in C Program

#include

#include 

void main()

{

  int a = 3, b = 3, c;

   asm {

      mov ax,a

      mov bx,a

      add ax,bx

      mov c,ax

   }

   printf("%d",c);

}

C Program to Accept Paragraph using scanf

#include

#include 

int main()

{

   char para[100];

   printf("Enter Paragraph : ");

   scanf("%[^\t]s", para);

   printf("Accepted Paragraph : %s", para);

   return 0;

}

Output

Enter Paragraph : Pritesh Taral is author

of c4learn

Accepted Paragraph : Pritesh Taral is author

of  c 4learn