Answer:
The answer is a. java Main arg0 arg1 arg2 arg3
Explanation:
The strings here are called command line argument. These command line arguments allow you to run your program from your terminal/command line. You may think just like passing parameters to a function. Since you have four strings in your program, you need to pass four arguments.
B average because he want to estimate how many people were in the meeting
Answer:
Bluetooth
Explanation:
Bluetooth is a standard to share data between Mobil devises, typically less than 10 m (33 ft), up to 100 m (330 ft), but the Bluetooth 5.0 has a range of 40–400 m (100–1,000 ft), in addition, NFC is something similar because needs a separation of 10 cm or less, and with RFID we can read to hundreds of meters.
Answer:
it could be decimal or hexadecimal