JAVA-

class StudentGrade

{

private String name;

double score;

public Person(String name, double score)

{

this.name = name;

this.score = score;

}

public String toString()

{

String res = "Name: " + name + " ";

res += "Score: " + score + " ";

return res;

}

public String getName()

{

return name;

}

public double getScore()

{

return score;

}

}

class GradeArray

{

}

public class Homework1

{

public static void main(String[] args)

{

int maxSize = 100;

String courseID = "CS116";

GradeArray grades = new GradeArray(maxSize, courseID);

grades.insert("Evans", 78);

grades.insert("Smith", 77);

grades.insert("Yee", 83);

grades.insert("Adams", 63);

grades.insert("Hashimoto", 91);

grades.insert("Stimson", 89);

grades.insert("Velasquez", 72);

grades.insert("Lamarque", 74);

grades.insert("Vang", 52);

grades.insert("Creswell", 88);

// print grade summary: course ID, average, how many A, B, C, D and

Fs

System.out.println(grades);

String searchKey = "Stimson"; // search for item

StudentGrade found = grades.find(searchKey);

if (found != null) {

System.out.print("Found ");

System.out.print(found);

}

else

System.out.println("Can't find " + searchKey);

// Find average and standard deviation

System.out.println("Grade Average: " + grades.avg());

System.out.println("Standard dev; " + grades.std());

// Show student grades sorted by name and sorted by grade

grades.reportGrades(); // sorted by name

grades.reportGradesSorted(); // sorted by grade

System.out.println("Deleting Smith, Yee, and Creswell");

grades.delete("Smith"); // delete 3 items

grades.delete("Yee");

grades.delete("Creswell");

System.out.println(grades); // display the course summary again

}

}

Complete the GradeArray class by implementing the following features: 1. Constructor of GradeArray 2. The insert0, delete0, and find0 methods. Sequential search is OK 3. The argo and stdO methods for calculating the average and standard deviation of the grade data. Use the following formula: The toString0 methods for displaying the grade summary: Show the course ID, grade average, and how many A, B, C, D, and Fs are given 4. Use the following grading scheme: A for 90 or above, B for 80 to 89,. for below 60 5. The reportGrades0 method for displaying students' grades sorted by student name, and the reportGradesSorted0 method for displaying students' grades sorted by grade