I want to do this online course on java located here: http://www.bfoit.org/itp/JavaProgram.html
i need a java compiler and vm in order to work on this course correct?
i have a brand new mac.
Supposedly all macs come with all the java programs that i need.
How do I access them?
I tried to doing the first "hello world" lesson that site and i dont know how to open the .jar file that i created on textedit with a java compiler and virtual machine as directed.