I need help with the “RoR Gradebook 1” lab: GradeRunner.java: //(c)…

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Question Answered step-by-step I need help with the “RoR Gradebook 1” lab: GradeRunner.java: //(c)… I need help with the “RoR Gradebook 1” lab: GradeRunner.java://(c) A+ Computer Science//www.apluscompsci.com//Name – public class GradesRunner{   public static void main( String args[] )   {    double[] vals = {90, 85, 95.5, 77.5, 88};        Grades test = new Grades( vals );        System.out.println(test);        System.out.println(“sum = ” + test.getSum());          System.out.println(“num grades = “+test.getNumGrades());                                                    System.out.println(“low grade = “+test.getLowGrade());              System.out.println(“high grade = “+test.getHighGrade());               //add more test cases    }      }  Grades.java://(c) A+ Computer Science//www.apluscompsci.com//Name – public class Grades{    private Grade[] grades;       public Grades( double[] list )    {      }       public void setGrade(int pos, double grade)    {    }       public double getSum()    {        return 0;    }       public double getLowGrade()    {        return 0;    }       public double getHighGrade()    {        return 0;    }       public int getNumGrades()    {        return 0;    }       public String toString()    {        return “”;    }  } Computer Science Engineering & Technology Java Programming CIS MISC Share QuestionEmailCopy link Comments (0)