How to Convert Decimal Number into Octal and Hexadecimal

To convert a numbers into its equivalent we divide the given number with its base for example to convert into Octal divide with 8 and for Hexadecimal divide it with 16. For Hexadecimal Further more condition is applied which show the alphabet.

Source Code    

#include<iostream>
#include<conio.h>
using namespace std;

int main()
{

 int num;
 cout<<"\n\n\n ************** NUMBER CONVERSION ************** \n\n\n";
 
 cout<<" \n Enter Number = ";
 cin>>num;
 int digit=num;
 int n=num;
 cout<<"  \n \n In Binary = ";
 while(num>0)
 {
  int remminder;
  remminder=num%2;
  cout<<remminder;
  num=num/2;
 }
 cout<<" \n \n In Octal = ";
 while(digit>0)
 {
  int r;
  r=digit%8;
  cout<<r;
  digit=digit/8;
 }
 cout<<" \n \n In Hexa Decimal= ";
 while(n>0)
 {
  int remminderm;
  remminderm=n%16;
  
  if(remminderm<9)
  {
   cout<<remminderm;
  }
  
  else
  
  if(remminderm==10)
  {
   cout<<"A";
  }
 
  else
 
  if(remminderm==11)
  
  {
   cout<<" B ";
  }
 
  else
  if(remminderm==12)
  
  {
   cout<<" C ";
  }
 
  else
  
  if(remminderm==13)
  {
   cout<<" D ";
  }
  else
  
  if(remminderm==14)
  {
   cout<< " E ";
  }
  else
  
  if(remminderm==15)
  {
   cout<< " F ";
  }
  
  n=n/16;
 }
 
return 0;
}

Output of the Program 

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Asad Niazi is Software Engineer , Programmer, Web Developer and a young mentor of BloggersTown and PProgramming. Asad Love to writes about Technology, Programming, Blogging and make money online.