Converting byte array to float

Question

I want to convert a 4-element byte array which I receive from socket connection to float. I searched on Google and tried several methods but couldn't help myself.

UPDATE The proper way to convert byte array to float is using this code:

ByteBuffer.wrap(array).getFloat();

http://stackoverflow.com/questions/13469681/how-to-convert-4-bytes-array-to-float-in-java?rq=1 — Amit Chauhan, Mar 07 '14 at 13:09
I tried `float f = ByteBuffer.wrap(size).order(ByteOrder.LITTLE_ENDIAN).getFloat();` but it doesn't return what I expected. — WWJD, Mar 07 '14 at 13:23

score 6 · Accepted Answer · answered Mar 07 '14 at 13:11

6

ByteBuffer.wrap(array).getFloat();

answered Mar 07 '14 at 13:11

Louis Wasserman

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score 1 · Answer 2 · edited May 23 '17 at 11:54

1

Refer to this question , Use these methods:

float fromByteArray(byte[] bytes) {
     return ByteBuffer.wrap(bytes).getFloat();
}

float fromByteArray(byte[] bytes) {
     return bytes[0] << 24 | (bytes[1] & 0xFF) << 16 | (bytes[2] & 0xFF) << 8 | (bytes[3] & 0xFF)
}

edited May 23 '17 at 11:54

Community

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answered Mar 07 '14 at 13:14

youssefhassan

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You are casting int to float in the second method. Should use Float.intBitsToFloat(int bits). – RoK Jun 22 '23 at 04:48

Converting byte array to float

2 Answers2