{"post":"

Convert Binary-Hexadecimal program

Binary Number: A binary number is a number expressed in the base-2 binary numeral system, using only two symbols: which are 0 (zero) and 1 (one).

HexaDecimal Number: A hexadecimal number is a positional numeral system with base 16 and uses sixteen distinct symbols (0 to 15).

Example:

Binary number: 10110

Equivalent Hexadecimal Number: 16

Binary number: 101010

Equivalent Hexadecimal Number: 2A

# Algorithm

Take a binary number as input.
Group all binary bits to 4 digits (starting from the right side).
Write the corresponding hexadecimal value of each grouped digit.

Code:

#include <iostream>\nusing namespace std;\n\nint main() {\n    char binaryNumber[1000], hexadecimalNumber[1000];\n    int temp;\n    long int binaryIndex = 0, hexadecimalIndex = 0;\n    \n    cout << \"Enter Binary Number: \";\n    cin >> binaryNumber;\n    \n    while (binaryNumber[binaryIndex]) {\n        binaryNumber[binaryIndex] = binaryNumber[binaryIndex] - 48;\n        ++binaryIndex;\n    }\n    --binaryIndex;\n    \n    while (binaryIndex - 2 >= 0) {\n        temp = binaryNumber[binaryIndex - 3] * 8 + binaryNumber[binaryIndex - 2] * 4 + binaryNumber[binaryIndex - 1] * 2 + binaryNumber[binaryIndex];\n        if (temp > 9) {\n            hexadecimalNumber[hexadecimalIndex++] = temp + 55;\n        } else {\n            hexadecimalNumber[hexadecimalIndex++] = temp + 48;\n        }\n        binaryIndex = binaryIndex - 4;\n    }\n    \n    if (binaryIndex == 1) {\n        hexadecimalNumber[hexadecimalIndex] = binaryNumber[binaryIndex - 1] * 2 + binaryNumber[binaryIndex] + 48;\n    } else if (binaryIndex == 0) {\n        hexadecimalNumber[hexadecimalIndex] = binaryNumber[binaryIndex] + 48;\n    } else {\n        --hexadecimalIndex;\n    }\n    \n    cout << \"\\nHexadecimal Number equivalent to Binary Number: \";\n    while (hexadecimalIndex >= 0) {\n        cout << hexadecimalNumber[hexadecimalIndex--]\n    }\n    \n    return 0;\n}\n\n

Output

Enter Binary Number: 1010101\nHexadecimal Number equivalent to Binary Number: 155\n\n

\n","title":"Convert Binary to Hexadecimal program in C++","authorDetails":{"name":"Prabhnoor Maingi","slug":"prabhnoor-maingi"},"description":"Learn how to write a program in C++ to convert a binary number to its equivalent hexadecimal representation. Get step-by-step instructions and examples on how to use C++ programming techniques to perform the conversion.","slug":"cpp/examples/convert-binary-to-hexadecimal-program-in-cpp/","articleId":"636a83447bb1ce5072622b65","bookmarkStatus":{"isBookmarked":false,"bookmarkId":null}}