how can i convert a decimal number to a hexadecimal number.
Who is Participating?

Commented:
Or....

#include <iostream.h>

void digittohex(int n){
if (n < 10)
cout << n;

else{
if (n == 10)
cout << "A";
if (n == 11)
cout << "B";
if (n == 12)
cout << "C";
if (n == 13)
cout << "D";
if (n == 14)
cout << "E";
if (n == 15)
cout << "F";
}
}

void decimaltohex(int n){

if (n >= 0 && n < 256){
digittohex(n / 16);
digittohex(n % 16);
}
}

int main(){
int n;
cin >> n;
decimaltohex(n);
cout << endl;
return 0;
}

0

Commented:
following are my solution, if this solution not match with your question then plz. clear the question.
solution 1.
char hexaNo[10];
sprintf(hexaNo,"%x",n); // where n is Decimal no.

solution 2.
char hextable[16] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
#define TOHEX(a, b)
{*b++ = hextable[a >> 4];*b++ = hextable[a&0xf];}

solution 3.

char hexatable[]={'0','1','2','3','4',
'5','6','7','8','9','A','B','C','D','E','F'};
int n;
char hexaNo[10];
scanf("%d",&n);
while(n)
{
hexaNo[i]=hexatable[n%16];
n = n/16;
}
printf("hexa no = %s",hexaNo);

0

Commented:
This will explains you everything...
check it out..
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=3209&lngWId=3
0

Commented:
Or....

#include <iostream.h>

void digittohex(int n){
if (n < 10)
cout << n;

else{
if (n == 10)
cout << "A";
if (n == 11)
cout << "B";
if (n == 12)
cout << "C";
if (n == 13)
cout << "D";
if (n == 14)
cout << "E";
if (n == 15)
cout << "F";
}
}

void decimaltohex(int n){

if (n >= 0 && n < 256){
digittohex(n / 16);
digittohex(n % 16);
}
}

int main(){
int n;
cin >> n;
decimaltohex(n);
cout << endl;
return 0;
}

Use this form to notify us if this entry should be deleted (i.e contains no code, is a virus, etc.).
Reason:

What do you think of this code(in the Beginner category)?
(The codewith your highest vote will win this month's coding contest!)
Excellent  Good  Average  Below Average  Poor
See Voting Log

There are no comments on this submission.

Note:Not only will your feedback be posted, but an email will be sent to the code's author in your name.

NOTICE: The author of this code has been kind enough to share it with you.  If you have a criticism, please state it politely or it will be deleted.

Name:
Comment:

0

Commented:
hi GEliyahu

what u written in the last of second comment?
can i know ur mail-id plz?
0

Commented:
first..
ignore pls the second comment...
just reffer to the third one..

second..
what is a mail-id?
you wants my E-mail?

0

Commented:
yes plz.
0

Commented:
geliyahu@hotmail.com
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.