// A program to calculate a student's overall grade in a course
//   somewhat similar to CSE142. The program also prints out
//   messages about certain "achievements" the student earned.
//
// DEVELOPMENT NOTES:
// (These notes would not be in your program's comments. They are here
// to help you understand important topics or elements of this code.)
//
// Notice the use of if, if-else, and if-else if statements in the
//   printAchievements method to control the conditional execution.
public class Grades {
   public static void main(String[] args) {
      int assign1Score = 10;
      int assign1Poss = 10;
      int assign2Score = 15;
      int assign2Poss = 16;
      int assign3Score = 19;
      int assign3Poss = 20;
      
      int midterm = 88;
      int fin = 82;
      
      double assignAvg = calculateAssignGrade(assign1Score, assign2Score, assign3Score,
                           		      assign1Poss, assign2Poss, assign3Poss);
      
      double overall = calculateGrade(assignAvg, midterm, fin);
      
      printResults(assignAvg, midterm, fin, overall);
      printAchievements(assignAvg, midterm, fin, overall);
   }
   
   // Computes and returns a student's total programming assignment grade.
   //
   // int score1 - the student's score on A1
   // int score2 - the student's score on A2
   // int score3 - the student's score on A3
   // int poss1 - the maximum possible score on HW1
   // int poss2 - the maximum possible score on HW2
   // int poss3 - the maximum possible score on HW3
   public static double calculateAssignGrade(int score1, int score2, int score3,
                                             int poss1, int poss2, int poss3) {
      int assignTotal = score1 + score2 + score3;
      int assignPoss = poss1 + poss2 + poss3;
      double assignAvg = (double) assignTotal / assignPoss;   
      return assignAvg;
   }
   
   // Computes and returns a student's overall grade in the course
   //   using the formula: 45% assignments, 20% midterm, 35% final
   //
   // double assignAvg - student's programming assignment 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 calculateGrade(double assignAvg, int midterm, int fin) {
      return (0.45 * assignAvg) + (0.20 * (midterm / 100.0)) + (0.35 * (fin / 100.0)); 
   }
   
   // Prints the parts of a student's grade in the course
   // 
   // double assigns - student's programming assignment 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 assigns, int mid, int fin, double overall) {
      System.out.println("Assign. Average: " + assigns);
      System.out.println("Midterm: " + mid);
      System.out.println("Final: " + fin);
      System.out.println("Overall grade: " + overall);   
   }
   
   // Prints various messages about a student's specific achievements in the course
   // 
   // double assigns - student's programming assignment 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 printAchievements(double assigns, int mid, int fin, double overall) {
      if (assigns > 0.9) {
         System.out.println("Great job on your programming assignments!");
      }
      
      if (fin > mid) {
         System.out.println("You improved from the midterm to the final exam. Yay!");
      } else {
         System.out.println("You did not improve from the midterm to the final exam. That's OK."); 
      }
      
      if (overall >= 0.9) {
         System.out.println("You'll get at least a 3.5!");
      } else if (overall >= 0.8) {
         System.out.println("That'll be a 2.5 or better.");
      } else if (overall >= 0.7) {
         System.out.println("You earned a 1.5.");
      } else if (overall >= 0.6) {
         System.out.println("At least you passed.");
      } else {
         System.out.println("I'm sure you worked hard.");
      }
      
      System.out.println("Have a great quarter.");
   }
}