Problem with a little piece of code in C

Hi,

I am new to C programming and I came across a problem. When I comiple and run the following code I get the output: You have entered +:

Code:#include <stdio.h>

int main(int argc, char *argv[])
{

if ((*argv[1]) == '+'){

printf("You have entered +");

}

return 0;
}
But when I compile and run the following code I get not output at all:

Code:#include <stdio.h>

int main(int argc, char *argv[])
{

if ((*argv[1]) == '*'){

printf("You have entered *");

}

return 0;
}So what is the problem and how can I dissolve this?

Thanks.

Ben