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Questions tagged [hex]

Hexadecimal (also base 16, or hex) is the base-16 positional numeral system, using the 16 symbols 0–9 and A‒F.

Hexadecimal (also base 16, or hex) is a numeral system with a base of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a–f) to represent values ten to fifteen.

Each hexadecimal digit represents four binary digits (bits), and the primary use of hexadecimal notation is a human-friendly representation of binary-coded values in computing and digital electronics. More information may be found here.

Other numeral systems:

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Print a string as hexadecimal bytes

I have this string: Hello, World! and I want to print it using Python as '48:65:6c:6c:6f:2c:20:57:6f:72:6c:64:21'. hex() works only for integers. How can it be done?
Eduard Florinescu
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How do I convert hex to decimal in Python?

I have some Perl code where the hex() function converts hex data to decimal. How can I do it on Python?
Sir D
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Hexadecimal To Decimal in Shell Script

Can someone help me to convert a hexadecimal number to decimal number in a shell script? E.g., I want to convert the hexadecimal number bfca3000 to decimal using a shell script. I basically want the difference of two hexadecimal numbers. My code…
VenkateshJN
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How to convert numbers between hexadecimal and decimal

How do you convert between hexadecimal numbers and decimal numbers in C#?
Andy McCluggage
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Visual Studio debugger - Displaying integer values in Hex

I'm using Visual Studio 2008 and I have just noticed that the debugger is displaying integer values as Hex when I hover over variables and also in the immediate window. I guess I must have hit a shortcut key accidently or something. Anyone had this…
fizzer
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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros?

I'm working with some example java code for making md5 hashes. One part converts the results from bytes to a string of hex digits: byte messageDigest[] = algorithm.digest(); StringBuffer hexString = new StringBuffer(); for (int…
Eugene M
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C++ convert hex string to signed integer

I want to convert a hex string to a 32 bit signed integer in C++. So, for example, I have the hex string "fffefffe". The binary representation of this is 11111111111111101111111111111110. The signed integer representation of this is: -65538. …
Clayton
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What do numbers using 0x notation mean?

What does a 0x prefix on a number mean? const int shared_segment_size = 0x6400; It's from a C program. I can't recall what it amounts to and particularly what the letter x means.
Terry Li
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Converting an RGB color tuple to a hexidecimal string

I need to convert (0, 128, 64) to something like this "#008040". I'm not sure what to call the latter, making searching difficult.
rectangletangle
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Convert hex to binary

I have ABC123EFFF. I want to have 001010101111000001001000111110111111111111 (i.e. binary repr. with, say, 42 digits and leading zeroes). How?
aaaaaaaaaaaaaaaaaaa
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Convert hex string to int

I am trying to convert a string that is 8 characters long of hex code into an integer so that I can do int comparison instead of string comparisons over a lot of different values. I know this is fairly trivial in C++ but I need to do it in Java. …
Roloc
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Printing hexadecimal characters in C

I'm trying to read in a line of characters, then print out the hexadecimal equivalent of the characters. For example, if I have a string that is "0xc0 0xc0 abc123", where the first 2 characters are c0 in hex and the remaining characters are abc123…
Rayne
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Convert decimal to hexadecimal in UNIX shell script

In a UNIX shell script, what can I use to convert decimal numbers into hexadecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers. printf? Gross! Using it for now, but what else is…
skiphoppy
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How to create python bytes object from long hex string?

I have a long sequence of hex digits in a string, such as 000000000000484240FA063DE5D0B744ADBED63A81FAEA390000C8428640A43D5005BD44 only much longer, several kilobytes. Is there a builtin way to convert this to a bytes object in python 2.6/3?
recursive
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Converting A String To Hexadecimal In Java

I am trying to convert a string like "testing123" into hexadecimal form in java. I am currently using BlueJ. And to convert it back, is it the same thing except backward?
Keith
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