I have the following arrays which save the MAC-adresses of a lot of bluetooth beacons and their positions in a building: private static final String[][] MAC_ADDRESSES_A_BLUETOOTH = {{"B09122F5D126", "210.105"}, {"B09122F5F26B", "136.121"}, {"B09122F5F619", "181.172"}}; ... private static final String[][] MAC_ADDRESSES_Q_BLUETOOTH = {{"B09122F5D124", "210.105"}, {"B0…