0

I'm working on an a grading program that will require the use of a couple classes. The program contains a list of "program assignments" which there are 5, and 3 test scores. The Driver class contains the scores for the students. I'm stuck writing the average methods :$ Along with the total exam scores/program scores (populateExamAverages/populateProgramAverages). Any help will be appreciated! Here's the classes I'm using... Thanks in advance!!

public class ITCourseGrade {
    private final static int MAXCAPACITY = 30;
    private Student[] studentArray = new Student[MAXCAPACITY];
    private double[] examAverages;
    private double[] programAverages;
    private int numberOfStudents;
    
    public ITCourseGrade(Student[] studentArray) {
        for (int i = 0; i < studentArray.length; i++) {
            this.studentArray[i] = studentArray[i];
        }
        examAverages = new double[3];
        programAverages = new double[5];
        numberOfStudents = studentArray.length;
    }
    
    private int[] programTotals() {

        int[] programTotals = {20, 20, 20, 20, 20};
        return programTotals;
        /*
        private method that returns an array containing the total points for 
        every program.  Used by populateProgramAverages
        */
    }
    
    public void populateProgramAverages(int[] programScores) {
        int total = 0;

        double[] programScores = {0.0, 0.0, 0.0, 0.0, 0.0,};
        for (int i = 0; i < numberofStudents.length; i++) {
            System.out.println("Student" + studentArray.length);
            for( int j = 0; j < programTotals.length ; j++){
                total += programScores[j];
        return ( double ) total / programScores.length;
                
                
        /*
        method that populates the programAverages array with the 
        averages for each exam.  Needs to call programTotals()
        */
        
    }
    
    public void printProgramAverages() {
        for (int i = 0; i < programAverages.length; i++) {
            System.out.println("The average score for program " + (i +1) + " is: " 

+programAverages[i]);
        }
    }
    
    private int[] examTotals() {

        int[] examTotals = {100, 100, 100};
        return examTotals;
        /*
        private method that returns an array containing the total points for 
        every exam.  Used by populateExamAverages
        */
        
    }
    
    public void populateExamAverages() {
        
        for (int i = 0; i < studentArray.length; i++) {
            for( int j = 0; j < ExamScore.length ; j++){
        /*
        method that populates the examAverages array with the 
        averages for each exam.  Needs to call examTotals()
        */
        
    }
    
    public void printExamAverages() {
        for (int i = 0; i < examAverages.length; i++) {
            System.out.println("The average score for exam" + (i + 1) + " is: " + 

examAverages[i]);
        }
    }
}

The Student class:

public class Student {
    private String firstName;
    private String lastName;
    private String techId;
    private int[] examScores;
    private int[] programScores;
    
    public Student(String firstName, String lastName, String techId, int[] examScores, int[] programScores) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.techId = techId;
        this.examScores = examScores;
        this.programScores = programScores;
    }
    
    public String getFirstName() {
        return firstName;
    }
    
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    
    public String getLastName() {
        return lastName;
    }
    
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    
    public String getTechId() {
        return techId;
    }
    
    public void setTechId(String techId) {
        this.techId = techId;
    }
    
    public void setExamScores(int[] examScores) {
        this.examScores = examScores;
    }
    
    public int[] getExamScores() {
        return examScores;
    }
    
    public void setProgramScores(int[] programScores) {
        this.programScores = programScores;
    }
    
    public int[] getProgramScores() {
        return programScores;
    }
    
    public int totalExamScores() {
        /*
        returns the total exam scores for this student
        iterate through and add
        */
    }
    
    public int totalProgramScores() {
        /*
        returns the total program scores for this student
        */
    }
    
    public int totalPoints() {
        return totalExamScores() + totalProgramScores();
    }
    
    public char letterGrade() {
        /*
        returns an 'A' if the total points earned by the student is >= 360
        returns a 'B' if the total points earned by the student is >= 320
        returns a 'C' if the total points earned by the student is >= 280
        returns a 'D' if the total points earned by the student is >= 240
        returns a 'F' if the total points earned by the student is < 240
        */
    }
    
}

And finally the Driver class

public class Driver {
    public static void main(String[] args) {
        
        int[] stud1ExamScores = {56, 76, 86};
        int[] stud1ProgramScores = {10, 15, 16, 18, 10};
        Student student1 = new Student("The", "Devil", "666", stud1ExamScores, stud1ProgramScores);
        
        int[] stud2ExamScores = {100, 90, 100};
        int[] stud2ProgramScores = {17, 19, 20, 18, 20};
        Student student2 = new Student("Joe", "Blow", "123", stud2ExamScores, stud2ProgramScores);
        
        Student[] studentArray= {student1, student2};
        ITCourseGrade course = new ITCourseGrade(studentArray);

        System.out.println();
        course.populateExamAverages();
        course.printExamAverages();
        System.out.println();
        course.populateProgramAverages();
        course.printProgramAverages();
    }
}

Edited by Ezzaral: Closing because a deleted bump post is causing this to remain sorted near the top.

1
Contributor
1
Reply
2
Views
6 Years
Discussion Span
Last Post by ssmokincamaro
0

Ok if I could just get help getting the score into the method examTotals() that would be awesome!


From the driver class...

public class Driver {
    public static void main(String[] args) {
        
        int[] stud1ExamScores = {56, 76, 86};
        int[] stud1ProgramScores = {10, 15, 16, 18, 10};
        Student student1 = new Student("The", "Devil", "666", stud1ExamScores, stud1ProgramScores);
        
        int[] stud2ExamScores = {100, 90, 100};
        int[] stud2ProgramScores = {17, 19, 20, 18, 20};
        Student student2 = new Student("Joe", "Blow", "123", stud2ExamScores, stud2ProgramScores);
        
        Student[] studentArray= {student1, student2};
        Course214Section1 course = new Course214Section1(studentArray);

        System.out.println();
        course.populateExamAverages();
        course.printExamAverages();
        System.out.println();
        course.populateProgramAverages();
        course.printProgramAverages();
    }
}

To the ITCourseGrade class

public class ITCourseGrade {
    private final static int MAXCAPACITY = 30;
    private Student[] studentArray = new Student[MAXCAPACITY];
    private double[] examAverages;
    private double[] programAverages;
    private int numberOfStudents;
    
    public ITCourseGrade(Student[] studentArray) {
        for (int i = 0; i < studentArray.length; i++) {
            this.studentArray[i] = studentArray[i];
        }
        examAverages = new double[3];
        programAverages = new double[5];
        numberOfStudents = studentArray.length;
    }
    
    private int[] programTotals() {

        int[] programTotals = {20, 20, 20, 20, 20};
        return programTotals;
        /*
        private method that returns an array containing the total points for 
        every program.  Used by populateProgramAverages
        */
    }
    
    public void populateProgramAverages(int[] programScores) {
        int total = 0;

        double[] programScores = {0.0, 0.0, 0.0, 0.0, 0.0,};
        for (int i = 0; i < numberofStudents.length; i++) {
            System.out.println("Student" + studentArray.length);
            for( int j = 0; j < programTotals.length ; j++){
                total += programScores[j];
        return ( double ) total / programScores.length;
                
                
        /*
        method that populates the programAverages array with the 
        averages for each exam.  Needs to call programTotals()
        */
        
    }
    
    public void printProgramAverages() {
        for (int i = 0; i < programAverages.length; i++) {
            System.out.println("The average score for program " + (i +1) + " is: " 

+programAverages[i]);
        }
    }
    
    private int[] examTotals() {

        int[] examTotals = {100, 100, 100};
        return examTotals;
        /*
        private method that returns an array containing the total points for 
        every exam.  Used by populateExamAverages
        */
        
    }
    
    public void populateExamAverages() {
        
        for (int i = 0; i < studentArray.length; i++) {
            for( int j = 0; j < ExamScore.length ; j++){
        /*
        method that populates the examAverages array with the 
        averages for each exam.  Needs to call examTotals()
        */
        
    }
    
    public void printExamAverages() {
        for (int i = 0; i < examAverages.length; i++) {
            System.out.println("The average score for exam" + (i + 1) + " is: " + 

examAverages[i]);
        }
    }
}