CODEWITHSUNDEEP
javaarrays
mikhail
mikhail

Reputation: 5169

ByteBuffer to int array (each byte)

Related to question byte array to Int Array, however I would like to convert each byte to an int, not each 4-bytes.

Is there a better/cleaner way than this:

protected static int[] bufferToIntArray(ByteBuffer buffer) {
    byte[] byteArray = new byte[buffer.capacity()];
    buffer.get(byteArray);

    int[] intArray = new int[byteArray.length];

    for (int i = 0; i < byteArray.length; i++) {
        intArray[i] = byteArray[i];
    }

    return intArray;
}

Upvotes: 0

Views: 3621

Answers (3)

Johann
Johann

Reputation: 29867

This produces an int array:

int[] intArray = byteBuffer.asInBuffer().array()

Upvotes: -1

Sjd
Sjd

Reputation: 1261

for kotlin programmers..

fun getIntArray(byteBuffer: ByteBuffer): IntArray{
    val array = IntArray(byteBuffer.capacity())
    for (i in array.indices) {
        array[i] = byteBuffer.getInt(i)
    }
    return array
}

Upvotes: 0

Louis Wasserman
Louis Wasserman

Reputation: 198023

I'd probably prefer

int[] array = new int[buffer.capacity()];
for (int i = 0; i < array.length; i++) {
  array[i] = buffer.get(i);
}
return array;

Upvotes: 3

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