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Is it possible to get specific bytes from a byte array in java?
I have a byte array:
byte[] abc = new byte[512]; and i want to have 3 different byte arrays from this array.
I tried abc.read(byte[], offset,length) but it works only if I give offset as 0, for any other value it throws an IndexOutOfbounds exception.
What am I doing wrong?
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Split Byte Array In Java, we can use ByteBuffer or System. arraycopy to split a single byte array into multiple byte arrays. For example, this 000102030a0b0c0d1a1b1c1d2f2f is a byte array (14 bytes) in hex representation, it is a combined of cipher (8 bytes) + nonce (4 bytes) + extra (2 bytes).
To concatenate multiple byte arrays, you can use the Bytes. concat() method, which can take any number of arrays.
Solution: To split a byte string into a list of lines—each line being a byte string itself—use the Bytes. split(delimiter) method and use the Bytes newline character b'\n' as a delimiter.
ByteBuffer holds a sequence of integer values to be used in an I/O operation. The ByteBuffer class provides the following four categories of operations upon long buffers: Absolute and relative get method that read single bytes. Absolute and relative put methods that write single bytes.
You can use Arrays.copyOfRange() for that.
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