Converting byte array to float [duplicate]

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();

I tried float f = ByteBuffer.wrap(size).order(ByteOrder.LITTLE_ENDIAN).getFloat(); but it doesn't return what I expected. — WWJD
– WWJD, Commented Mar 7, 2014 at 13:23

Louis Wasserman · Accepted Answer · 2014-03-07 13:11:00Z

6

ByteBuffer.wrap(array).getFloat();

answered Mar 7, 2014 at 13:11

Louis Wasserman

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Comments

Community · Accepted Answer · 2017-05-23 11:54:26Z

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, 2017 at 11:54

CommunityBot

11 silver badge

answered Mar 7, 2014 at 13:14

youssefhassan

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1 Comment

RoK Over a year ago

You are casting int to float in the second method. Should use Float.intBitsToFloat(int bits).

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