/* GradeAverage.java by Craig Persiko
   CS 111A In-class exercise solution
   In-class exercise: Write a program that has the user enter 
   3 numeric homework grades, and outputs their average. 
   Make sure to use a floating point data type for the grades. 
   Use "printf" to show the average rounded to the nearest tenth (showing just 1 digit after the decimal point) 
*/

import java.util.Scanner;

class GradeAverage
{
  public static void main(String[] args)
  {
    Scanner scan = new Scanner(System.in);
    double grade1, grade2, grade3, average;

    System.out.println("Please enter 3 grades, separated by spaces");
    grade1 = scan.nextDouble();
    grade2 = scan.nextDouble();
    grade3 = scan.nextDouble();
    
    average = (grade1 + grade2 + grade3) / 3;

    System.out.printf("Their average is: %.1f \n", average);
  }
}

/* Sample Output:

[cpersiko@fog cs111a]$ javac GradeAverage.java
[cpersiko@fog cs111a]$ java GradeAverage
Please enter 3 grades, separated by spaces
9.5 7.5 8.3
Their average is: 8.4
[cpersiko@fog cs111a]$ 

*/