How to use programming adapter

New to robotc, and have some questions about robotC programming.

  1. How to use programming adapter with robotC?
  2. How to read the real time data of joystick when debugging?
  3. Is there any function like easyC online windows, that can read the real time data of sensors?

Some information on getting started with RobotC here.
http://help.robotc.net/WebHelpVEX/index.htm#Resources/topics/Getting_Started/Cortex_Setup_-_Wired.htm

Diagrams showing the options for using the programming kit are here.

After the program is downloaded use the joystick debug window.
http://help.robotc.net/WebHelpVEX/index.htm#Resources/topics/ROBOTC_Debugger/Debug_Windows/Joystick_Control.htm

Yes, there are several other debug windows that allow you to view sensors, motors, variables and many other parameters.
http://help.robotc.net/WebHelpVEX/index.htm#Resources/topics/ROBOTC_Debugger/Program_Debugging.htm