I am currently making my project and it involves graphing functions. I have chosen Java because as I have surfed the net, i was able to download a library (JGraphT) that tells me that it can help me graph mathematical functions.

Now, my problem is, i dont know how to draw the Cartesian Plane, with labels.
And does anybody know how JGraphT works? Ive been trying the examples that are included in the demo, but all that appears are points. not lines/curves.

hope you guys can help me. :) Thanks!

Could you post a link to this library, and show us your code?