/*
המחלקה Teacher
*/
public class Teacher
{
    const int NUM_OF_STUDENTS = 40;
    private Student[] students;
    private int numOfStudents;
    //פעולה בונה 
    public Teacher()
    {
        students = new Student[NUM_OF_STUDENTS];
        numOfStudents = 0;
    }
    public Student[] GetStudents()
    {
        Student[] studs = new Student[numOfStudents];
        for (int i = 0; i < numOfStudents; i++)
            studs[i] = new Student(students[i].GetName(),
  students[i].GetHistoryGrade());
        return studs;
    }
    public Student GetStudentByName(string name)
    {
        for (int i = 0; i < numOfStudents; i++)
            if (students[i].GetName() == name)
                return new Student(students[i].GetName(),
students[i].GetHistoryGrade());
        return null; // לא נמצא תלמיד בשם זה
    }
    public void InsertStudent(Student stud)
    {
        int i = numOfStudents - 1;
        while (i >= 0 &&
students[i].GetHistoryGrade() > stud.GetHistoryGrade())
        {
            students[i + 1] = students[i];
            i--;
        }//while
        students[i + 1] = new Student(stud.GetName(),
stud.GetHistoryGrade());
        numOfStudents++;
    }
}//class Teacher
/*
המחלקה Student
*/
public class Student
{
    private double historyGrade;
    private string name;
    //פעולה בונה 
    public Student(string name, double historyGrade)
    {
        this.historyGrade = historyGrade;
        this.name = name;
    }
    //פעולות גישה 
    public double GetHistoryGrade()
    {
        return historyGrade;
    }
    public string GetName()
    {
        return name;
    }
}//class Student