I do not have PassFailActivity.java

The code isn't working.

There are errors even though it seems correct.

Your help is needed

PassFailExam.java

public class PassFailExam extends PassFailActivity { private int numOfQuestions;

private double pointsOfEach;

private int numOfMissed;

public PassFailExam(int questions, int missed, double minPassing) { super(minPassing);

double numericScoreValue;

numOfQuestions = questions; numOfMissed = missed;

pointsOfEach = 100.0/questions; numericScoreValue = 100.0 - (missed*pointsOfEach);

setScore(numericScoreValue); } public double getPointsOfEach() { return pointsOfEach; } public int getNumOfMissed() { return numOfMissed; } }

GradedActivity.java

public class GradedActivity { private double scoreValue;

public void setScore(double s1) { scoreValue = s1; } public double getScoreOf() { return scoreValue; } public char getGradeOf() { char letterGrade;

if(scoreValue >= 90) letterGrade ='A';

else if(scoreValue >= 80) letterGrade = 'B';

else if(scoreValue >= 70) letterGrade ='C';

else if(scoreValue >= 60) letterGrade ='D';

else letterGrade = 'F';

return letterGrade; } }

FinalExam.java

public class FinalExam extends GradedActivity { private int numOfQuestions;

private double pointsOfEach;

private int numOfMissed;

public FinalExam(int questions, int missed) { double numericScoreValue;

numOfQuestions = questions; numOfMissed = missed;

pointsOfEach = 100.0/questions; numericScoreValue = 100.0 - (missed*pointsOfEach);

setScore(numericScoreValue); }

public double getPointsOfEach() { return pointsOfEach; }

public int getNumOfMissed() { return numOfMissed; } }

Essay.java

public class Essay extends GradedActivity { private int grammars; private int spellings; private int correctLengths; private int contents;

public Essay(int egrammar, int espelling, int ecorrectLength, int econtent) { grammars = egrammar; spellings = espelling; correctLengths = ecorrectLength; contents = econtent;

setScore(grammars + spellings + correctLengths + contents); }

public int getgrammar() { return grammars; }

public int getSpelling() { return spellings; }

public int getCorrectLength() { return correctLengths; }

public int getContent() { return contents; }

}

CourseGrades.java

public class CourseGrades { private GradedActivity[] grades = new GradedActivity[4];

public void setLab(GradedActivity ga) { grades[0] = ga; }

public void setPassFailExam(PassFailExam pfe) { grades[1] = pfe; }

public void setEssay(Essay e) { grades[2] = e; }

public void setFinalExam(FinalExam fe) { grades[3] = fe; }

public String toString() { return "Lab: " + " Score: " + grades[0].getScoreOf() + " Grade: " + grades[0].getGradeOf() + " PassFailExam: " + " Score: " + grades[1].getScoreOf() + " Grade: " + grades[1].getGradeOf() + " Essay: " + " Score: " + grades[2].getScoreOf() + " Grade: " + grades[2].getGradeOf() + " FinalExam: " + " Score: " + grades[3].getScoreOf() + " Grade: " + grades[3].getGradeOf(); } }

CourseGradeDemo.java

public class CourseGradeDemo { public static void main(String[] args) { GradedActivity ga = new GradedActivity();

ga.setScore(60);

PassFailExam pfe = new PassFailExam(10, 3, 70);

Essay e = new Essay(28, 19, 18, 29);

FinalExam fe = new FinalExam(50, 12);

CourseGrades coursegrade = new CourseGrades();

coursegrade.setLab(ga);

coursegrade.setPassFailExam(pfe);

coursegrade.setEssay(e);

coursegrade.setFinalExam(fe);

System.out.println(coursegrade); } }