Hey guys guys... i developed my first c program. it is simple.. please check it !!

[Lich]

Wow elakiri machan Maath langadi indan thamai C patan gaththe Keep it up

EDIT:

Machan mama nikan Akuru dekak gahala baluwa(instead of numbers). Ethakotath uththarayak enawa neda? Eeka hadanna dannawada? just wanna learn XP kiwwa wage Validate karanna wei neda?

that because that Char converts to ASCII Value and prints. for that you need to Validate like X-pert said

 

[fazaal24]

that because that Char converts to ASCII Value and prints. for that you need to Validate like X-pert said

Thanks. Have to work on that.

 

[Lich]

Thanks. Have to work on that.

ela

Here are some ASCII Values

 

[manjula009]

aa patta machooo....mamath kamathima subject eka thama PROGRAMMING BUt mata igena ganne widiyak na......NO HElP

 

[VIDUrUVAN123]

return(0); is not nessery in main machang because main is a void function wich mean it does not return anything

 

[VIDUrUVAN123]

ElaKiri machang. Good job.

Next step should be to validate the input.

Try it out

Hint:
You might need to enter a masking aftr every input like
printf("\n Enter First No\n");
scanf("%d", &a);
if (a>=-9999 && a<9999) printf("Enter second number") scanf("bla bla")
else printf("invalid input... please enter a valid number again")

yeh validating should be there

 

[cha.frozen]

nice

 

[Ranhiru]

Got this from a website...i didnt write the code though ill explain it This is for validation if the entered numbers are actually digits and not any char values
This is pretty much tough i guess for a beginner...ill try to explain line by line

//First take input using a string
printf("Enter a number :- ");
gets(str);

//Create variable's named flag and len
int flag,len;

//Assign the value 0 to flag
flag=0;

//Let len take the value of how much characters are there in the string
//strlen is a function defined in string.h so dont forget to include it too

len = strlen(str); /* str is the number in string format*/

// Now loop len times in the string (char array actually )

for(int i=0;i<len;i++)
{
if(!isdigit(str))
flag=1;
//isdigit is a function in ctype.h which will return whether the character is a digit or not...so you do it for all the letters in thearray
}

if(flag==0)
/* the string contains only digits*/
else
/* it contains other characters*/
..
..
..

isdigit is defined in "ctype.h"..

in case of any problem .. u can write it on your own as ..

int isdigit(char c)
{
if(c < '0' or c > '9')
return 0;
else
return 1;
}


This is the full code that i've come up with

#include <stdio.h>
#include <string.h>
#include <ctype.h>


void main()
{
char str[10];
int len=0,flag=0;

printf("Enter a number :- ");
gets(str);

len = strlen(str);

for(int i=0;i<len;i++)
 {
    if(!isdigit(str[i]))
         flag=1;
 }

 if (flag==0)
 printf("Only contains digits!");
 else
 printf("Contains non-digits");


}

Please ask if anything seems weird ... and if you dont understand any of this...dont worry even a bit! its your first day!!! bookmark this page and after about 2 or 3 weeks..after you have done loops and arrays just come and take a look! you will understand everything! hope this helps and did not confuse you

gud luck!

 

[cow_theboy]

thanks guys... for comments and helps...

 

[koondeGoda]

well done..
btw..Itz better you can handle exceptions..invalid inputs an'ol
I dunno C much..keep coding