Pseudocode for the student grade calculator program, pleaseCreate a program to enter grades and calculate averages and letter grades.Need a class which will contain:Student NameStudent IdStudent Grades (an array of 3 grades)A constructor that clears the student data (use -1 for unset grades)Get functions for items a, b, and c, average, and letter gradeSet functions for items a, n, and cNote that the get and set functions for Student grades need an argument for the grade index.Need another class which will contain:An Array of Students (1 above)A count of number of students in useYou need to create a menu interface that allows you to:Add new studentsEnter test gradesDisplay all the students with their names, ids, test grades, average, and letter gradeExit the programAdd comments and use proper indentation.Nice Features:I would like that system to accept a student with no grades, then later add one or more grades, and when all grades are entered, calculate the final average or grade.I would like the system to display the students in alphabetical order (no matter what order they are entered in)

Given that, Create a program to enter grades and calculate averages and letter grades. Need a class which will contain: Student Name Student Id Student Grades (an array of 3 grades) A constructor that clears the student data (use -1 for unset grades) Get functions for items a, b, and c, average, and letter grade Set functions for items a, n, and c Note that the get and set functions for Student grades need an argument for the grade index. Need another class which will contain: An Array of Students (1 above) A count of number of students in use You need to create a menu interface that allows you to: Add new students Enter test grades Display all the students with their names, ids, test grades, average, and letter grade Exit the program Add comments and use proper indentation.Code: Student.java import java.util.Arrays; public class Student { // fields private String name; private int id; private int[] grades; // constructor public Student(String name, int id) { this.name = name; this.id = id; this.grades = new int[3]; } // Getters and setters public String getName() { return name; } public void setName(String name) { this.name = name; } public int getId() { return id; } public void setId(int id) { this.id = id; } public int getGrade(int index) { return grades[index]; } public void setGrade(int index, int grade) { this.grades[index] = grade; } // get average of the grades public double getAverage() { return (grades[0]+grades[1]+grades[2])/3.0; } // get the letter grade public String getLetterGrade() { double avg=getAverage(); if(avg>=85) return "A"; else if(avg>=75) return "B"; else if(avg>=60) return "C"; else if(avg>=45) return "D"; else return "F"; } // to string @Override public String toString() { return "Student{" + "name='" + name + ", id=" + id + ", grades=" + Arrays.toString(grades) + ", average="+getAverage() + ", Letter Grade="+getLetterGrade()+ '}'; }}=========================== TestStudent.java import java.util.Scanner; public class TestStudent { // scanner to read input static Scanner sc=new Scanner(System.in); public static void main(String[] args) { //An Array of Students Student[] students=new Student[100]; // A count of number of students in use int count=0; String choice=menu(); while(!choice.equals("D")) { switch (choice) { case "A": Student student = createStudent(); // add the student to the array students[count] = student; // increase the count count++; break; case "B": System.out.println("Enter the test number(1/2/3): "); int testNum = sc.nextInt(); while (testNum > 3 || testNum <= 0) { System.out.println("Invalid testNumber. Try again."); testNum = sc.nextInt(); } for (int i = 0; i < count; i++) { System.out.println("Student " + students[i].getName() + " has test grade " + students[i].getGrade(testNum - 1) + " in test " + testNum); System.out.print("Enter the new grade (just hit enter not to change): "); String grade = sc.next(); if (grade.length() > 0) { students[i].setGrade(testNum-1, Integer.parseInt(grade)); } } break; case "C": if(count==0) System.out.println("There are no students."); for (int i = 0; i < count; i++) { System.out.println(students[i]); } break; } choice=menu(); } } private static Student createStudent() { System.out.print("\nEnter Student name: "); String name=sc.next(); System.out.print("Enter student id: "); int id=sc.nextInt(); return new Student(name,id); } private static String menu() { System.out.println("\nEnter A to Add Students"); System.out.println("Enter B to Enter Test Grades"); System.out.println("Enter C to Display Results"); System.out.println("Enter D to Exit Program"); System.out.print("Please select A, B, C, or D: "); String ch=sc.next(); if(!(ch.equals("A") || ch.equals("B")|| ch.equals("C")||ch.equals("D"))) { System.out.println("Invalid Choice. Please Try Again."); ch=menu(); } return ch; }} OUTPUT: Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CThere are no students. Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: A Enter Student name: PraveenEnter student id: 1 Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CStudent{name='Praveen, id=1, grades=[0, 0, 0], average=0.0, Letter Grade=F} Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: 1Invalid Choice. Please Try Again. Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: A Enter Student name: KumarEnter student id: 2 Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CStudent{name='Praveen, id=1, grades=[0, 0, 0], average=0.0, Letter Grade=F}Student{name='Kumar, id=2, grades=[0, 0, 0], average=0.0, Letter Grade=F} Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: BEnter the test number(1/2/3):1Student Praveen has test grade 0 in test 1Enter the new grade (just hit enter not to change): 89Student Kumar has test grade 0 in test 1Enter the new grade (just hit enter not to change):89 Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CStudent{name='Praveen, id=1, grades=[89, 0, 0], average=29.666666666666668, Letter Grade=F}Student{name='Kumar, id=2, grades=[89, 0, 0], average=29.666666666666668, Letter Grade=F} Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: BEnter the test number(1/2/3):2Student Praveen has test grade 0 in test 2Enter the new grade (just hit enter not to change): 78Student Kumar has test grade 0 in test 2Enter the new grade (just hit enter not to change): 0 Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CStudent{name='Praveen, id=1, grades=[89, 78, 0], average=55.666666666666664, Letter Grade=D}Student{name='Kumar, id=2, grades=[89, 0, 0], average=29.666666666666668, Letter Grade=F} Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: BEnter the test number(1/2/3):3Student Praveen has test grade 0 in test 3Enter the new grade (just hit enter not to change): 87Student Kumar has test grade 0 in test 3Enter the new grade (just hit enter not to change): 70 Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: CStudent{name='Praveen, id=1, grades=[89, 78, 87], average=84.66666666666667, Letter Grade=B}Student{name='Kumar, id=2, grades=[89, 0, 70], average=53.0, Letter Grade=D} Enter A to Add StudentsEnter B to Enter Test GradesEnter C to Display ResultsEnter D to Exit ProgramPlease select A, B, C, or D: D Process finished with exit code 0