import java.util.Scanner;

class Functions1
{
  /* add the three parameters together and return the result 
   */
  public static int sum(int x, int y, int z)
  {  
     int answer;
     answer = x + y + z;
     return answer;
  }
 
  /* add the parameters, divide by 3, and return the result 
   */
  public static double average (double a, double b, double c)
  {
     return (a + b + c) / 3.0; 
  }

  /* answers yes/no to the question "are these parameters in order,
   *  smallest to largest?"  Returns true for yes, false for no.
   *  (This kind of function often known as a "predicate function")
   */
  public static boolean inOrder(int x, int y, int z)
  {
     if (x <= y && y <= z)
	return true;
     else
	return false;
  }

  public static void main(String[] args)
  {
     int i1, i2, i3;
     double d1, d2, d3;
     Scanner input = new Scanner(System.in);

     System.out.print("Input three integers: ");
     i1 = input.nextInt();
     i2 = input.nextInt();
     i3 = input.nextInt();

     System.out.print("Input three doubles: ");
     d1 = input.nextDouble();
     d2 = input.nextDouble();
     d3 = input.nextDouble();

     // samples of function calls

     double avg;
     int total;
     total = sum(i1, i2, i3);
     avg = average(d1, d2, d3);

     System.out.println("The sum of the three integers = " + total);
     System.out.println("The average of the three doubles = " + avg);

     System.out.println("The sum of 10, 14, and 18 = " + sum(10, 14, 18));

     System.out.println("The average of 1.3, 2.7, and 6.9 = " +
				average(1.3, 2.7, 6.9) );


     // Notice that we can pass in integers where doubles are expected
     //   legal via automatic-type-conversion rules

     System.out.println("The average of the three integers = " +
				average(i1, i2, i3) );


    // Testing out the boolean function (InOrder)

     if (inOrder(i1, i2, i3))
  	System.out.println("The three integers were in ascending order");
     else
	System.out.println("The three integers were NOT in ascending order");
  }

}