How to convert byte[] to Byte[] and the other way around?
How to convert byte[]
to Byte[]
and also Byte[]
to byte[]
, in the case of not using any 3rd party library?
Is there a way to do it fast just using the standard library?
Solution 1:
byte[] to Byte[] :
byte[] bytes = ...;
Byte[] byteObject = ArrayUtils.toObject(bytes);
Byte[] to byte[] :
Byte[] byteObject = new Byte[0];
byte[] bytes = ArrayUtils.toPrimitive(byteObject);
Solution 2:
Byte
class is a wrapper for the primitive byte
. This should do the work:
byte[] bytes = new byte[10];
Byte[] byteObjects = new Byte[bytes.length];
int i=0;
// Associating Byte array values with bytes. (byte[] to Byte[])
for(byte b: bytes)
byteObjects[i++] = b; // Autoboxing.
....
int j=0;
// Unboxing Byte values. (Byte[] to byte[])
for(Byte b: byteObjects)
bytes[j++] = b.byteValue();