When we left off in class, there were two screens and we could navigate between the two. I want you to add a third screen and be able to navigate between the three screens. On the third screen I want you to be able to calculate the area of a circle given the radius or the area of a rectangle given the length and width. Show the code. Show examples of it working. Document as always.

I need to make a calculator reguler and second screen scintific calc so i can use back and forth and also i need third screen which shows calculate the area of a circle given the radius or the area of a triangle given the lenth and width on java using netbeans or Jgrasp.