Java tutorial
import java.io.ByteArrayOutputStream; import java.io.IOException; public class Main { public static void main(String[] args) throws IOException { byte[] bs = { 65, 66, 67, 68, 69 }; ByteArrayOutputStream baos = new ByteArrayOutputStream(); // write byte array to the output stream baos.write(bs, 3, 2); // read all the bytes in the output stream for (byte b : baos.toByteArray()) { System.out.println(b); } } }