I have to go to my friend's house near by princeton university
from newark airport after 6:00pm this monday.
please teach me how to get on any transportation system.

If you are coming in tomorrow the 29th you should check with your airline. Hurricane Sandy is going to hit New Jersey that day.
Thank you so much for your information of Hurricain Sandy.
Eventually you will get here to EWR.
Take monorail to EWR train station then take NJ Transit train to Princeton away from NYC. You will need to transfer at Princeton Junction. The train station in Princeton is on the Princeton campus across from the McCarter Theater building.
Edited: 8:25 am, October 28, 2012Thank you so much for your concrete advice,
I have printed it.
You can buy the NJ Transit train ticket right at the airport terminals.
Don't forget, when you get off the train at Princeton Junction, you then have to take the "Dinky" into Princeton. I have been told it the Junction to Princeton, NJ is the shortest commuter time of any train in the nation.
Or you can take a cab from the Junction into town
Does anyone know if the train from Newark airport to Princeton junction is working? Arriving in Newark Nov 1 pm
I heard Amtrak has limited service today. Not sure about nj transit for tomorrow. Here is the nj transit website.
I am going to arriving airport newark Nov. 1st.evening, then I would like to go to iPrinceton. but on TV information, all railroad and train are damaged and
electric power is stopped.
Please teach me, how a way to go to Princeton from newark airport on
Nov.1st. evening or Friday morning.