question: private String idString ( int id1 , int id2 ) { return "0x" + Integer . toHexString ( id2 & 0x7F ) + " 0x" + Integer . toHexString ( id1 & 0x7F ) + " (" + ( ( id2 & 0x7F ) * 128 + ( id1 & 0x7F ) ) + ")" ; }
target:  Convert throttle ID to a human friendly format.