// Twice.java
//
// What will this print?  What are the results?  What does the method do?


public class Twice
{
  public static void main(String[] args)
  {
     int x = 5, y = 8;

     System.out.println("Initial values of variables:\n");
     System.out.println("\tx = " + x + "\ty = " + y);

     System.out.println("Calling the function twice(x,y)");
     twice(x,y);				// what will this do?
	
     System.out.println("The new values of x and y are:");
     System.out.println("\tx = " + x + "\ty = " + y);
     System.out.println("Goodbye!");
  }

  public static void twice(int a, int b)
  // WHAT does this method do?
  {
     a *= 2;
     b *= 2;
  }
}