Byte to Binary String C# – Display all 8 digits
Convert.ToString(MyVeryOwnByte, 2).PadLeft(8, ‘0’); This will fill the empty space to the left with ‘0’ for a total of 8 characters in the string
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What is the best way to work around the fact that ALL Java bytes are signed?
It is actually possible to get rid of the if statement and the addition if you do it like this. byte[] foobar = ..; int value = (foobar[10] & 0xff); This way Java doesn’t interpret the byte as a negative number and flip the sign bit on the integer also.
Is there any reason not to use fixed width integer types (e.g. uint8_t)?
It’s actually quite common to store a number without needing to know the exact size of the type. There are plenty of quantities in my programs that I can reasonably assume won’t exceed 2 billion, or enforce that they don’t. But that doesn’t mean I need an exact 32 bit type to store them, any … Read more
2 bytes to short
Remember, you don’t have to tie yourself in knots with bit shifting if you’re not too familiar with the details. You can use a ByteBuffer to help you out: ByteBuffer bb = ByteBuffer.allocate(2); bb.order(ByteOrder.LITTLE_ENDIAN); bb.put(firstByte); bb.put(secondByte); short shortVal = bb.getShort(0); And vice versa, you can put a short, then pull out bytes. By the way, … Read more
How to detect string byte encoding?
Use chardet library. It is super easy import chardet the_encoding = chardet.detect(‘your string’)[‘encoding’] and that’s it! in python3 you need to provide type bytes or bytearray so: import chardet the_encoding = chardet.detect(b’your string’)[‘encoding’]
Converting a byte to a binary string in c#
Just change your code to: string yourByteString = Convert.ToString(byteArray[20], 2).PadLeft(8, ‘0’); // produces “00111111”
James Gosling’s explanation of why Java’s byte is signed
It appears that simplicity was the main reason. From this interview: Gosling: For me as a language designer, which I don’t really count myself as these days, what “simple” really ended up meaning was could I expect J. Random Developer to hold the spec in his head. That definition says that, for instance, Java isn’t … Read more
“TypeError: a bytes-like object is required, not ‘str'” when handling file content in Python 3
You opened the file in binary mode: with open(fname, ‘rb’) as f: This means that all data read from the file is returned as bytes objects, not str. You cannot then use a string in a containment test: if ‘some-pattern’ in tmp: continue You’d have to use a bytes object to test against tmp instead: … Read more
How to store a byte array in Javascript
By using typed arrays, you can store arrays of these types: Type Value Range Size(bytes) Int8Array -128 to 127 1 Uint8Array 0 to 255 1 Uint8ClampedArray 0 to 255 1 Int16Array -32768 to 32767 2 Uint16Array 0 to 65535 2 Int32Array -2147483648 to 2147483647 4 Uint32Array 0 to 4294967295 4 Float32Array -3.4E38 to 3.4E38 4 … Read more
Is it possible to create a type in c++ that takes less than one byte of memory?
Not really. Inside a struct, you can make use of bit fields. So if you know you’ll need a certain, fixed amount of entries, this would be a way to save a few bits (but note that the struct will always be padded to at least the next whole amount of bytes). Also note that … Read more