title: Calling other classes using command line arguments?
body: <p>I am writing a program where I use 2 command line arguments - the first one to choose 1 of the 3 support classes, and the second would be the int input value.</p>
  
  <p>This has me very confused on many levels, but the main thing I'd like to learn is how to refer to/call the support method from the App class.</p>
  
  <p>So far, my plan is to:
  Use an if-else (that is, if args[0] = 1 then this&that; if args[0] = 2 then this&amp;that, etc)</p>
  
  <p>Am I on the right track?
  At the moment, I don't even know what "this&amp;that" will be. I'm guessing it will be the statement where I call the other classes - how will I do that?</p>
  
  <p>I am teaching myself, and it's really not easy :)</p>
  
  <p>Thank you for your time and knowledge!</p>