Binary To Decimal Conversion

Program To Convert Binary Number To Decimal:

#include<iostream>
#include<math.h> //for power function
using namespace std;
main()
{
    int binary,decimal=0,i=0,remainder;
    cout<<"\nEnter The Binary Number ";
    cin>>binary;
    while(binary!=0)
    {
        remainder=binary%10; // getting the last digit
        binary=binary/10;
        decimal +=remainder*pow(2,i);//finding 2^i*digit
        i++;
    }
    cout<<"Decimal number is "<<decimal;
}

Also See Program To Perform Operations On Queue

Output:

Decimal To Hexadecimal Conversion

Program To Convert Decimal Number To Hexadecimal Number:

#include<iostream>
using namespace std;
main()
{
int num,hexa[50],i=0;
cout<<"\nEnter Any Decimal Number ";
cin>>num;
while(num>0)
{
hexa[i]=num%16;
num=num/16;
i++;
}
cout<<"\nHexadecimal Equivalent is ";
for(int j=i-1;j>=0;j--)
{
switch(hexa[j])
{
case 10:
cout<<"A";
break;
case 11:
   cout<<"B";
break;
case 12:
   cout<<"C";
break;
case 13:
   cout<<"D";
break;
case 14:
   cout<<"E";
break;
case 15:
   cout<<"F";
break;
default:
cout<<hexa[j];
}}
}
Also See Program To Convert Decimal TO Octal Click Here

Output:

Decimal To Binary Conersion

Program to Convert Decimal Number To Binary Equivalent:

#include<iostream>
using namespace std;
main()
{
int num,binary[50],i=0;
cout<<"\nEnter Any Decimal Number ";
cin>>num;
while(num>0)
{
binary[i]=num%2;   //finding remainder
num=num/2;
i++;
}
cout<<"\nBinary Equivalent is ";
for(int j=i-1;j>=0;j--)  //from down to top moving
cout<<binary[j];
}
Also see program to evaluate postfix expression Click Here

Output:

Basic To Class Type Conversion

Program To Convert Basic data Type To Class Type:
#include<iostream>
using namespace std;
class time
{
    int hours;
    int minutes;
    public:time()
    {
   
    }
        time(int m)
        { hours=m/60;
        minutes=m%60;
        }
    void display()
    {
        cout<<"\nTime Is "<<hours<<" Hours and "<<minutes<<"Minutes";
        }   
};
main()
{
    time t(165);
    t.display();
   
}