6 replies to this topic

[atoivan]

i need help with a program i am writing a in c++ and Java .a program that when i input a figure like 2345 it will sum the figure up by adding 2+3+4+5 can any one help some one give me some code

int a = 0
int i = atoi(argv[1]); 
while (i) { 
    a += i % 10; 
    i /= 10; 
}
printf("%d\n", a);

but it does not run correctly.

Edited by Alexander, 10 November 2010 - 03:35 PM.
(cleanup, code tags)

[Flying Dutchman]

Nothing seems wrong, except that you're missing semicolon after inicialization of a.

[atoivan]

it does not display the output. after i enter the value it will not display the result.

[Flying Dutchman]

You mean is closes really really fast? Or it doesn't display anything at all? What IDE, compiler are you using? And how do you run your program (via IDE, cmd/terminal)?

[espdev-darkness]

If the program is closing really fast and your using the header file <iostream>, just throw in cin.get(); before you return the main() function. cin.get(); prompts for keyboard input, there are alot of other ways to make sure your program doesn't close but thats the simplest way.

[mebob]

For C, put this at the end of your program (where you want to pause):

getc(stdin);

[mnirahd]

Hi,

There doesn't seem any problem with the code: make sure that you are giving command line parameter to your program when you run it. If you want to prompt user to input a number you can use

char str[33];

scanf("%s", str);

I hope this helps!

Munir