title: How to pass in an int in java and return a string
body: <p>I'm new to Java and trying to figure out something. 
  I have trying to write an easy app where I create an array list, ask for fname, sname &amp; mark, then covert the mark to Grade and save fname, sname &amp; grade to the array list.
  So far I can save a fname sname and mark to the array list
  I can in a different app pass in a mark and return the grade
  but I can't figure out how to combine the 2. I know I need to pass the int mark to my other method, then do the conversion but how do I return the string back up?
  Thanks</p>