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Index › Programming Questions & Help › Syntax Questions › converting byte to integer
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converting byte to integer (Read 616 times)
dRosen
converting byte to integer
Jun 19th, 2008, 1:41am  
hopefully an extremely simple question.

I want to send data from one computer to another, as type byte[].

is there some simple command I am missing to convert byte data into an integer? or into a float?

thanks.
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antiplastik
Re: converting byte to integer
Reply #1 - Jun 19th, 2008, 9:02am  
Reference > Data > Conversion
http://processing.org/reference/int_.html
http://processing.org/reference/float_.html
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dRosen
Re: converting byte to integer
Reply #2 - Jun 19th, 2008, 6:53pm  
Well its not quite that simple. I can cast a byte[] array into  an int[] array, but not into a regular int. that returns an error.

In the meantime, i just cast int data as a string and then convert it back on the other side. not very proper, but it works.
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antiplastik
Re: converting byte to integer
Reply #3 - Jun 19th, 2008, 8:21pm  
how much elements does your byte[] array contain?

you can "convert" bytes into an int, assuming your bytes are actually sequences of 4x8=32bits stored in a byte[] array for convenience, but you've got to keep in mind :

1 byte === 8 bits
1 int === 32 bits === 4 bytes

and you have to know in which order the bytes are stored.

is it what you want to do? or did I misunderstood something?
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dRosen
Re: converting byte to integer
Reply #4 - Jun 21st, 2008, 1:06am  
Hi antiplastik, I ended up doing something very similar to what you described, but in the end I found it was simpler to convert all my int data to a string, send it and split tokens to recover all my variables, and then convert them back into ints.

this is being used as control data for udp multicasting stuff, btw.

thanks.
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