Grades.java

package lab19b;

import java.util.Arrays;
import java.util.Scanner;
import static java.lang.System.*;
import static java.util.Arrays.*;
import java.util.*;

public class Grades
{
    private double[] grades;

    public Grades()
    {
        setGrades("");
    }

    public Grades(String gradeList)
    {
        setGrades(gradeList);
    }

    public void setGrades(String gradeList)
    {
        Scanner scan = new Scanner(gradeList);
        int size = scan.nextInt();
        scan.next();
        grades = new double[size];
        for(int i = 0; i < size; i++)
        {
            grades[i] = (double)scan.nextDouble();
        }
    }

    public void setGrade(int spot, double grade)
    {
        grades[spot] = grade;
    }

    public double getSum()
    {
        double sum=0.0;
        for(int i = 0; i < grades.length; i++)
        {
            sum+= grades[i];
        }
        return sum;
    }

    public double getLowGrade()
    {
        double low = Double.MAX_VALUE;
        for(int j = 0; j < grades.length; j++)
        {
            if(grades[j]<low)
            {
                low = grades[j];
            }
        }
        return low;
    }

    public double getHighGrade()
    {
        double high = Double.MIN_VALUE;
        for(int j = 0; j < grades.length; j++)
        {
            if(grades[j]>high)
            {
                high = grades[j];
            }
        }
        return high;
    }

    public int getNumGrades()
    {
        return grades.length;
    }

    public String toString()
    {
        String output="";
        for(int i = 0; i < grades.length; i++)
        {
            output+= grades[i] + " ";
        }
        return output;
    }
}