Need with Programming language in C# Can someone help Create an Application usin

Question

Need with Programming language in C#

Can someone help Create an Application using C#. Which Adds, Edits, and Deletes assignments onto a storage medium, with grades per student–per assignment. Assignments must be separated into 2 groups- Homework and Test. Grades for each group per student must be calculated along with an overall grade for each student (given in both percentage and Letter grade).

a.Program must include

    i.Subprograms with parameter passing

    ii.Abstract Data types

    iii.Encapsulation

    iv.Exception/ Error Handling

     v.Must verify only valid scores are entered per assignment

     vi.Documented for maintenance purposes

Explanation / Answer

//Program

using System.IO;
using System;
using System.Collections;
namespace Student_grade_System
{
    public class Assignment{
        string type;
        double mark;
        public Assignment(string type, double mark)
        {
            this.type=type;
            this.mark=mark;
        }
        double getMark()
        {
            return mark;
        }
    }
    
    class Student {
    string name;
    double grade;
    string letterGrade;
    // list of Assignments
    ArrayList AssignmentList = new ArrayList();
    Student(string name){
        this.name = name;
    }
    void addAssignment(Assignment A){
    AssignmentList.Add(A);
    }
    void deleteAssignment(Assignment A){
       AssignmentList.Remove(A);
    }
    void editAssignment(Assignment A, string type, double mark){
         AssignmentList.Remove(A);
         AssignmentList.Add(new Assignment(type,mark));
    //AssignmentList.Add(A);
    }
    
    void calculateGrade()
    {
        grade=0;
        foreach( Assignment assignment in AssignmentList) {
            grade+=assignment.getMark();
    }
        grade=grade/AssignmentList.Count;
    }
    
    void calculateLetterGrade()
    {
            if (grade > 90 && grade <= 100)
            {
                Console.WriteLine("A grade");
            }
            else if (grade > 80 && grade <= 90)
            {
                Console.WriteLine("B grade");
            }
            else if (grade > 70 && grade <= 80)
            {
                Console.WriteLine("C grade");
            }
            else if (grade > 60 && grade <= 70)
            {
                Console.WriteLine("D grade");
            }
            else if (grade > 50 && grade <= 60)
            {
                Console.WriteLine("E grade");
            }
            else
            {
                Console.WriteLine("F grade");  //fail
            }
            
            
            
    }
}

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