Write a c++ program to display a value in decimal, octal, and hexadecimal. The p

Question

Write a c++ program to display a value in decimal, octal, and hexadecimal.

The program must:

1. not use cout more than twice:

2. declare one type in variable

3. use count to prompt the user to enter any deimal integer numeric value:

4. use cin to obtain and store the user input value in the type int variable;

5. use cout to deplay the input value in decimal, octal, and hexadecimal using hte follogin fourmat where D represents the decimal value, 0 represents the octal value, and H represents the hexadecimal value. D decimal = 0 octal = H hexadecimal

for example, if the user where to enter 22 the program would display the following, all on one line:

22 decimal = 26 octal = 16 hexadecimal

Explanation / Answer

#include<iostream.h>
#include<conio.h>

int convertToOctal(int n) /* Function to convert decimal to octal */
{
    int rem; //declare varaiable to store remainder
    int i=1;   //declare and initialize varaiable i to 1
    int octal=0;   //declare varaiable to store the octal representation of decimal input number
    while (n!=0)   //keep on looping and dividing until the input decimal number becomes 0
    {
        rem=n%8;   //divide the number by 8 and store its remainder in variable rem
        n/=8;   //divide the number by 8 and store its quotient in n
        octal+=rem*i;   //evaluate octal=octal+rem*i
        i*=10;   //i=i*10;
    }
    return octal;   //return the octal representation of the number
}

int convertToHexaDecimal(int n) /* Function to convert decimal to octal */
{
    int rem;   //declare varaiable to store remainder
    int i=1;   //declare and initialize varaiable i to 1
    int hexadecimal=0;   //declare varaiable to store the hexadecimal representation of decimal input number
    while (n!=0)   //keep on looping and dividing until the input decimal number becomes 0
    {
        rem=n%16;   //divide the number by 16 and store its remainder in variable rem
        n/=16;   //divide the number by 16 and store its quotient in n
        hexadecimal+=rem*i;   //evaluate hexadecimal=hexadecimal+rem*i
        i*=10;   //i=i*10;
    }
    return hexadecimal;   //return the hexadecimal representation of the number
}

void main(){
   int var; //declare varaiable to store input decimal number
   clrscr();   //clear the screen
   cout<<"Enter any decimal integer numeric value: ";   //prompt user to enter decimal number
   cin>>var;   //accept the input and store in var
   cout<<"D "<<var<<" O "<<convertToOctal(var)<<" H "<<convertToHexaDecimal(var);   //display the decimal number and its octal and hexadeciaml representaion
   getch();   //wait for any key to be pressed to exit from the console
}

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