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Tag: byte

Hexadecimal byte array from a Midi event to int

I’m trying to retrieve the tempo of a midi file through the javax.midi library. What I am expected to receive is an array of three ex, because the Set Tempo meta message (which is this case, has just 3 bytes specifying a miliseconds amount. This is how the midi event returns So if you join them you have…

Java Base64 encoding loss of data

say I have the following snippet, where certificate is a java Certificate object: Is there any chance data will not be equal to newData? basically, is there loss of information to string and then back? Thanks Answer Assuming nothing explodes due to out-of-memory errors or similar general problems, this code s…

cannot decrypt String from text file [closed]

Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 2 years ago. Improve this question In my…

Byte to “Bit”array

A byte is the smallest numeric datatype java offers but yesterday I came in contact with bytestreams for the first time and at the beginning of every package a marker byte is send which gives further instructions on how to handle the package. Every bit of the byte has a specific meaning so I am in need to ent…

How to Convert Int to Unsigned Byte and Back

I need to convert a number into an unsigned byte. The number is always less than or equal to 255, and so it will fit in one byte. I also need to convert that byte back into that number. How would I do that in Java? I’ve tried several ways and none work. Here’s what I’m trying to do now:

Byte array of unknown length in java

I am constructing an array of bytes in java and I don’t know how long the array will be. I want some tool like Java’s StringBuffer that you can just call .append(byte b) or .append(byte[] buf) and have it buffer all my bytes and return to me a byte[] when I’m done. Is there a class that does…