Write a C program that can convert a decimal into other number bases The program

Question

Write a C program that can convert a decimal into other number bases The program first asks for a decimal integer ("Enter a decimal integer:n") The program then printout the decimal integer in base 2,8,16 format. The program will continue to ask for a binary number ("Enter a binary integer:ln" The program print out the decimal, octal, and hex value for the binary integer. Example: Enter a decimal integer: 17 *The number in octal is: 0o21 *The number in hex is: 0x11 Enter a binary integer: 10010 *The number in decimal is: 18 *The number in octal is: 0o22 *The number in hex is: 0x12 Note: You need to pad a prefix(Ob,00,0x to binary, octal, hex) when you print the value. For each output line, add a *at the beginning

Explanation / Answer

Program to convert Decimal to all other bases and Binary to all other bases

#include <stdio.h>

long decimalToBinary(long n);
int decimalToOctal(int n);
void Dec2Hex(int n);

int binaryToDecimal(int n);
int convertBinarytoOctal(int binaryNumber);
int convertBinarytoHexa(int binaryNumber);

int main() {
    long decimal;
    printf("Enter a decimal integer: ");
    scanf("%ld", &decimal);
    printf("*The number in binary is: 0b%ld",decimalToBinary(decimal));
    printf(" *The number in octal is 0o%d ",decimalToOctal(decimal));
    printf("*The number in hex is: 0x");
    Dec2Hex(decimal);

    int binary;
    printf(" Enter a binary number ");
    scanf("%d", &binary);
    printf("*The number in decimal is %d ",binaryToDecimal(binary));
    convertBinarytoOctal(binary);
    convertBinarytoHexa(binary);

    return 0;
}

/* Function to convert a Decimal number to Binary number */

long decimalToBinary(long n) {
    int remainder;
long binary = 0, i = 1;

    while(n != 0) {
        remainder = n%2;
        n = n/2;
        binary= binary + (remainder*i);
        i = i*10;
    }
    return binary;
}

/* Function to convert a Decimal number to Octal number */

int decimalToOctal(int decimalNumber)
{
    int octalNumber = 0, i = 1;

    while (decimalNumber != 0)
    {
        octalNumber += (decimalNumber % 8) * i;
        decimalNumber /= 8;
        i *= 10;
    }

    return octalNumber;
}

/* Function to convert a Decimal number to Hexa number */

void Dec2Hex(int no){
    int hex=0;
    if(!no)
        return;
    else {
        hex=no%16;
        Dec2Hex(no/16);
    }
    if(hex>9)
        printf("%c",'A'+(hex-10));
    else
        printf("%d",hex);
}

/* Function to convert a Binary number to Decimal number */

int binaryToDecimal(int n)
{
    int num = n;
    int dec_value = 0;
    int base = 1;
    int temp = num;
    while (temp)
    {
        int last_digit = temp % 10;
        temp = temp/10;
        dec_value += last_digit*base;
        base = base*2;
    }
    
    return dec_value;
}

/* Function to convert a Binary number to Octal number */

int convertBinarytoOctal(int binarynum)
{
    long int octalnum = 0, j = 1, remainder;
    while (binarynum != 0)
    {
        remainder = binarynum % 10;
        octalnum = octalnum + remainder * j;
        j = j * 2;
        binarynum = binarynum / 10;
    }
    printf("*The number in octal is 0o%lo ", octalnum);
    return 0;
}

/* Function to convert a Binary number to Hexa number */

int convertBinarytoHexa(int binaryval)
{
    long int hexadecimalval = 0, i = 1, remainder;
        while (binaryval != 0)
    {
        remainder = binaryval % 10;
        hexadecimalval = hexadecimalval + remainder * i;
        i = i * 2;
        binaryval = binaryval / 10;
    }

    printf("*The number in octal is 0x%lX ", hexadecimalval);

    return 0;
}

Thank you,

WIth regards.

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