This question already has answers here:
Guessing the encoding of text represented as byte[] in Java
(7 answers)
Closed 8 years ago.
I'm receiving a byte[] of information in an unspecified encoding format. Is there a way to convert it to a String without knowing the character encoding?
The tool of choice is CharsetMatch from ICU: http://userguide.icu-project.org/conversion/detection
It is not an exact science, so there is a confidence score that you have to watch and it will take some experimentation, but will definitely get you where you want to go. Good Luck!
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This question already has answers here:
Parse any date in Java
(6 answers)
Closed 2 years ago.
Is there an equivalent in java to python functions that can parse date/time input without giving the format as an argument?
I want to be able to receive an input and determine if it's a time stamp of some sort. Is it necessary to manually go over all common patterns?
dateparser is a neat utility which might fit your case
This question already has answers here:
How to convert byte[] to Byte[] and the other way around?
(9 answers)
Closed 3 years ago.
I want to convert a Byte array into a byte array, but I don't see any way to do so in java without using a loop.
Can someone please tell me a way to make it ?
There is no need for that, because Java has an auto-unboxing system that automatically converts Bytes to bytes. So, you can use them the same way. But if you really have to, you have to use a loop.
This question already has answers here:
Is it possible to decrypt MD5 hashes?
(24 answers)
Closed 3 years ago.
My problem is revert operation encode .
String computedLtpaTokenMd5 = new String(Base64.encodeBase64(MessageDigest.getInstance("MD5").digest(ltpaToken.getBytes())));
how to recover the token ltpaToken by computedLtPaTOkenMD5?
You cannot.
That is the whole point of a cryptographic hash function (which MD5 is, or rather was, you should not use it anymore): It is one-way.
All you can do is check if a given token matches that hashed value (by running the same hash function again and either getting the same output or not).
(You can reverse the Base64 encoding, but not the MD5 hashing)
This question already has answers here:
How do you convert a byte array to a hexadecimal string, and vice versa?
(53 answers)
Closed 4 years ago.
I am looking for a way or multiple ways (Always good to know many ways) how to convert Text (String) to HexaDecimal like this http://codebeautify.org/string-hex-converter
Any help would be appreciated.
I've been looking for hours around different places and I have so far found no code that could potentionally do this for me.
All the ways that this could be done is accepted, I love learning about coding.
String to Hex:
Integer.decode(hexString);
Hex to String:
Integer.toHexString(integer);
This question already has answers here:
Reading binary file and looping over each byte [duplicate]
(13 answers)
Closed 9 years ago.
We had DataInputStream for processing binary files in Java; what can we use for these files in Python?
I have used the Construct package a lot to read and parse structures data in Python.
Basically it lets you declare the file's structure in a very idiomatic and pythonic way and than parses or encode it for you.
After parsing you have an object that allows access to all the file's information via attributes.
open("file", "b") opens the file and you can read it. See here.
Few years ago I used struct module to parse binary responses from several game servers http://docs.python.org/2/library/struct.html#struct.unpack
Sometimes it's usefull just to .find() some bytes in data, like .find('\x00') to go to the end of NULL-terminated string.