TheProgrammingPortal

In this tutorial you will see how to convert decimal numbers into hexadecimal numbers using logical implementation. Also, we will use built in methods and understand each line in detail.

Source code

decimal_value = int(input("Enter any integer value:"))

# Method - 1 - Using custom logic implementation

def decimal_to_hexa(num):

    conversion_table = {
        0: '0', 1: '1', 2: '2', 3: '3',
        4: '4', 5: '5', 6: '6', 7: '7',
        8: '8', 9: '9', 10: 'A', 11: 'B',
        12: 'C', 13: 'D', 14: 'E', 15: 'F'
    }

    hexa_value = ""

    while num > 0:
        remainder = num % 16
        hexa_value = hexa_value + conversion_table[remainder]
        # hexa_value = conversion_table[remainder] + hexa_value
        # above line can be used to avoid reversing of final output
        num = num // 16

    # return hexa_value
    return hexa_value[::-1]

output = decimal_to_hexa(decimal_value)
print('Hexa value:', output)

# Method - 2 - Using Built In Method - hex()

output = hex(decimal_value)
print(output[2:])

# Method - 3 - Using Built In Method - format()

output = format(decimal_value, 'x')
print(output)