/*
 * A class to illustrate the use of some simple functions.
 */

class FunkyFunctions
  {
  public static void main(String[] args)
    {
    int firstArg = Integer.parseInt(args[0]); // First command-line argument.
    int secondArg = Integer.parseInt(args[1]);  // Second argument.

    System.out.println(firstArg + " + 1/" + secondArg + " = " +
                         plusInverse(firstArg, secondArg));
    String isOrNot; 
    if (isDivisibleBy(firstArg, secondArg)) 
       {
       isOrNot = " is ";
       }
    else
      {
      isOrNot = " is not ";
      }
    System.out.println(firstArg + isOrNot + "divisible by " + secondArg);
    System.out.print("The divisors of " + firstArg + " are "); 
    printDivisors(firstArg);
    System.out.print("The divisors of " + secondArg + " are "); 
    printDivisors(secondArg); 
    }

  /*
   * A function which takes parameters a, b and computes a + 1/b.
   */
  public static double plusInverse(int a, int b)
    {
    return a + (double)1/b;
    }

  /*
   * A function which takes parameters a, b and returns a boolean
   * expressing whether or not a is divisible by b.
   */
  public static boolean isDivisibleBy(int a, int b)
    {
    return (a % b == 0);
    }

  /*
   * A function which prints out the positive divisors of its parameter.
   */
  public static void printDivisors(int a)
    {
    for (int i = 1; i < a; i++)
      {
      if (isDivisibleBy(a, i))
	{
	System.out.print(i + ", ");
	}
      }
    System.out.println(a);
    }
  }