public class Grades {
   public static void main(String[] args) {
      // 45% homeworks (3), 20% midterm, 35% final
      // want to calculate overall percentage
      
      // get homework percentage
      double hwPct = getHwPercentage(8, 10, 14, 16, 17, 20);
      // get midterm score
      int midtermScore = 80;
      // get final score
      int finalScore = 82;
      // calculate, print out overall percentage
      calcOverallGrade(hwPct, midtermScore, finalScore);
   }
   
   public static double getHwPercentage(int score1, int poss1, int score2, int poss2, 
                                        int score3, int poss3) {
      int sumActual = score1 + score2 + score3;
      int sumPoss = poss1 + poss2 + poss3;
      return (double) sumActual / sumPoss;
      return -10;
      // return percentage;
   }
   
   public static void calcOverallGrade(double hwPct, int midScore, int finScore) {
      double hwPct = getHwPercentage(...)
   
      double midPct = midScore / 100.0;
      double finPct = finScore / 100.0;
      double overallGrade = hwPct * 0.45 + midPct * 0.2 + finPct * 0.35;
      System.out.println("Overall grade is: " + overallGrade);
   }
}