// A program to calculate a student's overall grade in a course
//   somewhat similar to CSE142.
//
// Notice the use of parameters and return values to capture the
//   structure of the program while still allowing main to retain
//   high-level control.
public class Grades {
   public static void main(String[] args) {
      int hw1 = 10;
      int hw1Poss = 10;
      int hw2 = 15;
      int hw2Poss = 16;
      int hw3 = 18;
      int hw3Poss = 20;
      int hw4 = 15;
      int hw4Poss = 20;

      int totalScore = hw1 + hw2 + hw3 + hw4;
      int totalPoss = hw1Poss + hw2Poss + hw3Poss + hw4Poss;
      double hwPct = (double) totalScore / totalPoss;
      
      int mid = 87;
      int fin = 80;
      
      double overall = calcOverallPct(hwPct, mid, fin);

      printResults(hwPct, mid, fin, overall);
   }
   
   // Computes and returns a student's overall grade in the course
   //   using the formula: 45% homework, 20% midterm, 35% final
   //
   // double hwPct - student's homework percentage
   // int mid - student's score on the midterm (out of 100)
   // int fin - student's score on the final exam (out of 100)
   public static double calcOverallPct(double hwPct, int mid, int fin) {
      double overall = (hwPct * 0.45) + (mid / 100.0 * 0.20) + (fin / 100.0 * 0.35);
      return overall;
   }
   
   // Prints the parts of a student's grade in the course
   // 
   // double hwPct - student's homework percentage
   // int mid - student's score on the midterm (out of 100)
   // int fin - student's score on the final exam (out of 100)
   // double overall - student's overall percentage in the course
   public static void printResults(double hwPct, int mid, int fin, double overall) {
      System.out.println("HW Avg:  " + hwPct * 100.0);
      System.out.println("Midterm: " + mid);
      System.out.println("Final:   " + fin);
      System.out.println("OVERALL: " + overall * 100.0);   
   }
}