title: Merge two bytes in java/android
body: <p>I have a frame of 22 bytes. The frame is the input stream from an accelerometer via bluetooth. The acceleromter readings are a 16 bit number split over two bytes. </p>
  
  <p>When i try to merge the bytes with buffer[1] + buffer[2], rather than adding the bytes, it just puts the results side by side. so 1+2 = 12.</p>
  
  <p>Could someone tell me how to combine these two bytes to obtain the original number. (btw the bytes are sent little endian)</p>
  
  <p>Thanks</p>