This app was mentioned in 2 comments, with an average of 0.50 upvotes
As someone who took basic programming classes as general ed I too am very impressed! Great Idea!
I wrote a program that calculates and saves nether portal coordinates to teach myself android programming a while back. If you guys have an android device you should check it out and let me know what you think.
https://play.google.com/store/apps/details?id=com.edapps.netherportalcalculator
you guys could always download my app. save all your coordinates and don't risk losing them to a glass of water or the dog!
its totally free no ads!
https://play.google.com/store/apps/details?id=com.edapps.netherportalcalculator