title: Java Pop-Up Window to Ask for Data
body: <p>What code would I use to ask a user to enter their grade into a pop-up window?</p>
  
  <p>When a JButton is pressed, I want a little box to pop-up and prompt the user to enter their grade. Furthermore, would it be possible to get the value of the entered double value? </p>
  
  <p>Thanks for all your time. I appreciate it!</p>