// here we are writing a class again
// this class will be our testing class
public class Test {
   // to write a main method, or a method that can be run, you always
   // write the line of code "public static void main(String[] args)"
   // this will be the method that gets run first when you compile and    
   // run this class
   public static void main(String[] args) {
      // first we instanciate a new ArrayIntList, which is 
      // the class that we wrote. To do that we first create
      // a variable by giving the type(ArrayIntList) followed
      // by the name (test) and then we set it equal to 
      // a "new" then I call our empty constructor( ArrayIntList() )
      ArrayIntList test = new ArrayIntList();
      
      // then I called the add method in our test ArrayIntList,
      // to do this, I use the variable test, followed by a period, then
      // followed by the name of the method that I want to call and I input
      // my parameters
      test.add(0, 1); // add the number 1 at index 0
                      // this tests adding at the front of the list           
      // to print out to standard out, or the console, then you write
      // "System.out.print" if you just want to print or "System.out.println"
      // if you want to print and then move to a new line
      System.out.println("Test 1: " + test.toString());
      test.add(1, 2); // add the number 2 at index 2
                      // this tests adding at the back of the list
      System.out.println("Test 2: " + test.toString());
      test.add(0, 3); // add the number 3 at index 0
                      // this tests adding somewhere that will cause a shift
      System.out.println("Test 3: " + test.toString());
   }
}