Java Utililty Methods Convert via ByteBuffer

List of utility methods to do Convert via ByteBuffer

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Description

The list of methods to do Convert via ByteBuffer are organized into topic(s).

Method

IntBufferintArrayToIntBuffer(int[] data)
Converts an array of primitive ints to a java.nio.IntBuffer . 
IntBuffer ret = ByteBuffer.allocateDirect(data.length << 2).order(ByteOrder.nativeOrder()).asIntBuffer();
ret.put(data).flip();
return ret;
byte[]intsToBytes(int[] n)
ints To Bytes 
byte[] bytes = new byte[n.length * (Integer.SIZE / 8)];
ByteBuffer b = ByteBuffer.wrap(bytes);
b.asIntBuffer().put(n);
return bytes;
byte[]IntToBArray(int src)
Int To B Array 
return ByteBuffer.allocate(4).putInt(src).array();
byte[]intToByte(int[] intArray)
int To Byte 
ByteBuffer byteBuffer = ByteBuffer.allocate(intArray.length * 4);
IntBuffer intBuffer = byteBuffer.asIntBuffer();
intBuffer.put(intArray);
byte[] array = byteBuffer.array();
return array;
byte[]intToByteArray(int integer)
int To Byte Array 
ByteBuffer buf = ByteBuffer.allocate(4);
buf.putInt(integer);
return buf.array();
byte[]intToByteArray(int l)
Converts an int to a byte array of length 4 containing the integer encoded in two's complement. 
byte[] bArray = new byte[4];
ByteBuffer bBuffer = ByteBuffer.wrap(bArray);
IntBuffer iBuffer = bBuffer.asIntBuffer();
iBuffer.put(0, l);
return bArray;
byte[]intToByteArray(int number)
Returns a int as a byte array. 
return ByteBuffer.allocate(Integer.BYTES).putInt(number).array();
byte[]intToByteArray(int someInt, int byteSize)
Convert an int to an byte array 
if (byteSize < 0) {
    throw new RuntimeException("Invalid byte size");
ByteBuffer buff = resize(ByteBuffer.allocate(4).putInt(someInt), byteSize);
return buff.array();
byte[]intToBytes(final int i)
Converts integer to big-endian byte array. 
if (i < 0) {
    throw new IllegalArgumentException("Cannot convert negative numbers.");
if (NUM_BYTES_PER_INT < MAX_INT_SIZE && (i > (2 ^ (8 * NUM_BYTES_PER_INT)))) {
    throw new IllegalArgumentException("Byte array too large");
ByteBuffer bb = ByteBuffer.allocate(MAX_INT_SIZE).putInt(i);
bb.rewind();
...
byte[]intToBytes(final int integer)
Convert an integer into a byte array. 
return ByteBuffer.allocate(INTEGER_SIZE).order(ByteOrder.LITTLE_ENDIAN).putInt(integer).array();