02 Command Line Arguments

"" argc = no of command line arguments ;
argv = arguments as pointer to a char array
""

#include

int main(int argc, char *argv[])
{
printf("Program name: %s\n", argv[0]);
int i;
for(i = 1 ; i)
printf("\nArgument %d: %s", i, argv[i]);
return 0;
}




01 Keywords

C Keywords

auto double int struct
break else long switch
case enum register typedef
char extern return union
const float short unsigned
continue for signed void
default goto sizeof volatile
do if static while




03 Scanf

"Accept 2 int , 2 float , 2 long and 2 double and display their sum"

/***************************************************************************
*            hello.c
*  Author : krishnaprasad varma
*  Sat Jun 14 04:51:08 2008
*  Copyright  2008  Krishnaprasad Varma
*  Email : krishnaprasadvarma<at>gmail.com
****************************************************************************/

#include

void main(void)
{
system('clear');
int ia,ib,ic;
float fa,fb,fc;
double da,db,dc;
long la,lb,lc;

printf("Enter ia\n");
scanf("%d",&ia);
printf("Enter ib\n");
scanf("%d",&ib);

ic = ia + ib;
printf("%d",ic);
printf("\n");

printf("Enter fa\n");
scanf("%f",&fa);
printf("Enter fb\n");
scanf("%f",&fb);

fc = fa + fb;
printf("%f",fc);
printf("\n");

printf("Enter da\n");
scanf("%lf",&da);
printf("Enter db\n");
scanf("%lf",&db);

dc = da + db;
printf("%lf",dc);
printf("\n");

printf("Enter la\n");
scanf("%ld",&la);
printf("Enter lb\n");
scanf("%ld",&lb);

lc = la + lb;
printf("%ld",lc);
printf("\n");

}

02 Printf

/***************************************************************************
*            hello.c
*  Author : krishnaprasad varma
*  Sat Jun 14 04:51:08 2008
*  Copyright  2008  Krishnaprasad Varma
*  Email : krishnaprasadvarmagmail.com
****************************************************************************/

#include

void main(void)
{
 system('clear');
 printf("\n\n\n\n\n");

 printf("\t\t\t************************************ \n");
 printf("\t\t\t \"   This is a printing program     \" ");
 printf("\n\t\t\t************************************");

}

01 Hello World !

/***************************************************************************
*            hello.c
*  Author : krishnaprasad varma
*  Sat Jun 14 04:51:08 2008
*  Copyright  2008  Krishnaprasad Varma
*  Email : krishnaprasadvarmagmail.com
****************************************************************************/

#include

main()
{
 system("clear");
 printf("\nHello World\n");

}